/* ==========================================================================
   VoteMaker — Editorial Monochrome
   Minimalism with micro-interactions: type as graphic, hairline structure,
   monochrome contrast, generous negative space.
   ========================================================================== */

/* 0. tokens
   ========================================================================== */
:root {
    color-scheme: light;

    --u-paper: #ffffff;
    --u-paper-2: #f7f7f5;
    --u-paper-3: #efefec;
    --u-ink: #0b0b0b;
    --u-ink-2: #2c2c2c;
    --u-ink-3: #5f5f5f;
    --u-ink-4: #6f6f6f;
    --u-line: #e5e5e2;
    --u-line-2: #cfcfca;
    --u-line-3: #9d9d97;

    --u-surface: #ffffff;
    --u-danger: #b3261e;
    --u-danger-soft: #fdf3f2;
    --u-warn: #7a5c00;
    --u-warn-soft: #faf6ea;
    --u-ok: #0b0b0b;
    --u-ok-soft: #f2f4ef;

    --u-brand: #0b0b0b;
    --u-faint: var(--u-ink-4);
    --u-muted: var(--u-ink-3);

    --u-header-bg: rgba(255, 255, 255, .88);
    --u-sel-bg: #0b0b0b;
    --u-sel-ink: #ffffff;
    --u-focus: #0b0b0b;

    --u-font: "Inter", "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
    --u-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    --u-display: clamp(2.6rem, 6.6vw, 5.6rem);
    --u-h1: clamp(2.1rem, 4.2vw, 3.4rem);
    --u-h2: clamp(1.5rem, 2.6vw, 2.1rem);
    --u-h3: clamp(1.1rem, 1.6vw, 1.3rem);

    --u-r: 2px;
    --u-r-pill: 999px;
    --u-shell: 1180px;
    --u-shell-wide: 1380px;
    --u-narrow: 760px;
    --u-ease: cubic-bezier(.22, .61, .36, 1);
    --u-dur: .18s;
}

[data-theme="dark"] {
    color-scheme: dark;

    --u-paper: #0b0b0b;
    --u-paper-2: #131313;
    --u-paper-3: #1b1b1b;
    --u-ink: #f5f5f3;
    --u-ink-2: #e2e2df;
    --u-ink-3: #a9a9a4;
    --u-ink-4: #9b9b96;
    --u-line: #262624;
    --u-line-2: #3a3a37;
    --u-line-3: #5c5c57;

    --u-surface: #101010;
    --u-danger: #ff8a80;
    --u-danger-soft: #241413;
    --u-warn: #e8c76a;
    --u-warn-soft: #201c11;
    --u-ok: #f5f5f3;
    --u-ok-soft: #16181a;

    --u-brand: #f5f5f3;
    --u-header-bg: rgba(11, 11, 11, .86);
    --u-sel-bg: #f5f5f3;
    --u-sel-ink: #0b0b0b;
    --u-focus: #f5f5f3;
}

/* 1. reset / base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body.u-body {
    margin: 0;
    min-height: 100vh;
    background: var(--u-paper);
    color: var(--u-ink);
    font-family: var(--u-font);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

.u-body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.u-main {
    flex: 1 0 auto;
    min-width: 0;
    position: relative;
    z-index: 1;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -.03em;
    overflow-wrap: anywhere;
}

p { margin: 0 0 15px; }
p:last-child { margin-bottom: 0; }

img, svg, video { max-width: 100%; }
svg { display: block; }

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

strong, b { font-weight: 700; }

hr {
    border: 0;
    border-top: 1px solid var(--u-line);
    margin: 30px 0;
}

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
button:disabled, [aria-disabled="true"] { opacity: .45; cursor: not-allowed; }

::selection { background: var(--u-sel-bg); color: var(--u-sel-ink); }

:focus-visible {
    outline: 2px solid var(--u-focus);
    outline-offset: 3px;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--u-paper); }
::-webkit-scrollbar-thumb { background: var(--u-line-2); border: 3px solid var(--u-paper); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--u-line-3); }

.hidden { display: none !important; }
.rotate-180 { transform: rotate(180deg); }
.u-sr-only {
    position: absolute; width: 1px; height: 1px; margin: -1px;
    padding: 0; border: 0; clip: rect(0 0 0 0); white-space: nowrap; overflow: hidden;
}

/* 2. typography / atoms
   ========================================================================== */
.u-h1 {
    font-size: var(--u-h1);
    font-weight: 750;
    letter-spacing: -.04em;
    line-height: 1.05;
}
.u-h3 { font-size: var(--u-h3); font-weight: 700; }

.u-page-title { margin: 0 0 10px; }

.u-eyebrow,
.u-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    font-family: var(--u-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--u-ink-3);
}
.u-eyebrow::before,
.u-kicker::before {
    content: "";
    width: 22px;
    height: 1px;
    background: currentColor;
    flex: none;
}
.u-kicker--plain::before { display: none; }

.u-lead {
    font-size: clamp(1rem, 1.5vw, 1.15rem);
    line-height: 1.75;
    color: var(--u-ink-3);
    max-width: 62ch;
}

.u-strong { font-weight: 700; }
.u-muted { color: var(--u-ink-3); }
.u-faint { color: var(--u-ink-4); }
.u-center { text-align: center; }
.u-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.u-scroll-x { overflow-x: auto; overscroll-behavior-x: contain; }
.u-meta { font-family: var(--u-mono); font-size: 12px; color: var(--u-ink-3); letter-spacing: .02em; }

.u-row { display: flex; align-items: center; gap: 15px; flex-wrap: wrap; }
.u-row-between { display: flex; align-items: center; justify-content: space-between; gap: 15px; flex-wrap: wrap; }
.u-col { display: flex; flex-direction: column; gap: 10px; }
.u-stack-10 { display: grid; gap: 10px; }
.u-stack-15 { display: grid; gap: 15px; }
.u-stack-20 { display: grid; gap: 20px; }
.u-stack-30 { display: grid; gap: 30px; }
.u-mb-10 { margin-bottom: 10px; }
.u-mb-15 { margin-bottom: 15px; }
.u-mb-20 { margin-bottom: 20px; }
.u-mb-30 { margin-bottom: 30px; }
.u-mt-10 { margin-top: 10px; }
.u-mt-20 { margin-top: 20px; }
.u-mt-25 { margin-top: 25px; }

.u-link {
    color: var(--u-ink);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
    transition: opacity var(--u-dur) var(--u-ease);
}
.u-link:hover { opacity: .6; }

.u-inline-add {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 0 4px;
    font-size: 13px;
    font-weight: 600;
    color: var(--u-ink);
    border-bottom: 1px solid var(--u-line-2);
    transition: border-color var(--u-dur) var(--u-ease), gap var(--u-dur) var(--u-ease);
}
.u-inline-add:hover { border-color: var(--u-ink); gap: 12px; }
.u-inline-add svg { width: 15px; height: 15px; }

.u-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    flex: none;
    color: var(--u-ink-3);
    border: 1px solid transparent;
    transition: color var(--u-dur) var(--u-ease), border-color var(--u-dur) var(--u-ease), background var(--u-dur) var(--u-ease);
}
.u-icon-btn:hover { color: var(--u-ink); border-color: var(--u-line-2); }
.u-icon-btn svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; }

.u-dot {
    width: 5px; height: 5px; flex: none;
    background: currentColor;
    border-radius: 50%;
}

.u-kbd {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-family: var(--u-mono);
    font-size: 10px;
    letter-spacing: .08em;
    color: var(--u-ink-4);
    text-transform: uppercase;
}
.u-kbd kbd {
    font-family: var(--u-mono);
    font-size: 10px;
    padding: 3px 6px;
    border: 1px solid var(--u-line);
    background: var(--u-paper-2);
}

.u-divider {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 25px 0;
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}
.u-divider::before,
.u-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--u-line);
}

/* 3. shell / layout
   ========================================================================== */
.u-shell {
    width: 100%;
    max-width: var(--u-shell);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 40px);
}
.u-shell-wide { max-width: var(--u-shell-wide); }
.u-narrow { max-width: var(--u-narrow); margin-inline: auto; }

.u-page {
    padding: clamp(40px, 5.5vw, 80px) 0 clamp(50px, 7vw, 100px);
}

.u-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 25px;
}
.u-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 25px;
}

.u-block-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    padding-bottom: 15px;
    margin-bottom: 25px;
    border-bottom: 1px solid var(--u-line);
}
.u-block-title { font-size: var(--u-h3); font-weight: 700; letter-spacing: -.02em; }
.u-block-desc { margin: 5px 0 0; font-size: 13px; color: var(--u-ink-3); line-height: 1.7; }

/* editorial primitives */
.u-rule { border: 0; border-top: 1px solid var(--u-line); margin: clamp(40px, 6vw, 90px) 0; }

.u-hero { padding: clamp(60px, 11vw, 150px) 0 clamp(40px, 6vw, 80px); }
.u-hero-title {
    font-size: var(--u-display);
    font-weight: 800;
    letter-spacing: -.055em;
    line-height: .98;
    text-wrap: balance;
}
.u-hero-lead {
    margin-top: 25px;
    max-width: 46ch;
    font-size: clamp(1rem, 1.6vw, 1.2rem);
    line-height: 1.75;
    color: var(--u-ink-3);
}
.u-hero-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 30px;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--u-line);
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--u-ink-3);
}

.u-index { border-top: 1px solid var(--u-line); }
.u-index-row {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 20px;
    padding: 25px 0;
    border-bottom: 1px solid var(--u-line);
    position: relative;
    transition: padding var(--u-dur) var(--u-ease);
}
a.u-index-row:hover { padding-left: 10px; }
.u-index-num {
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .1em;
    color: var(--u-ink-4);
}
.u-index-title {
    font-size: clamp(1.2rem, 2.2vw, 1.7rem);
    font-weight: 700;
    letter-spacing: -.03em;
    line-height: 1.25;
}
.u-index-desc { margin: 8px 0 0; max-width: 60ch; font-size: 13.5px; color: var(--u-ink-3); line-height: 1.75; }
.u-index-meta { font-family: var(--u-mono); font-size: 11.5px; letter-spacing: .06em; color: var(--u-ink-3); white-space: nowrap; }
.u-index-go {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--u-ink-3);
    transition: color var(--u-dur) var(--u-ease), gap var(--u-dur) var(--u-ease);
}
.u-index-row:hover .u-index-go { color: var(--u-ink); gap: 14px; }
.u-index-go svg { width: 15px; height: 15px; }

.u-split {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: clamp(30px, 5vw, 70px);
    align-items: start;
}
.u-aside { min-width: 0; }
.u-aside-sticky { position: sticky; top: 100px; }

.u-sheet {
    background: var(--u-surface);
    border: 1px solid var(--u-line);
}
.u-sheet-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 15px 20px;
    border-bottom: 1px solid var(--u-line);
}
.u-sheet-title { font-size: 13px; font-weight: 700; letter-spacing: -.01em; }
.u-sheet-body { padding: 20px; }

.u-figure { position: relative; overflow: hidden; background: var(--u-paper-2); }
.u-figure img { display: block; width: 100%; height: 100%; object-fit: cover; }
.u-figure-cap {
    margin-top: 10px;
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}

.u-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border: 1px solid var(--u-line-2);
    border-radius: var(--u-r-pill);
    font-family: var(--u-mono);
    font-size: 10.5px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--u-ink-3);
    white-space: nowrap;
}

/* 4. header
   ========================================================================== */
.u-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--u-header-bg);
    -webkit-backdrop-filter: saturate(1.4) blur(14px);
    backdrop-filter: saturate(1.4) blur(14px);
    border-bottom: 1px solid var(--u-line);
    transition: border-color var(--u-dur) var(--u-ease), background var(--u-dur) var(--u-ease);
}
.u-header.is-scrolled { border-bottom-color: var(--u-line-2); }

.u-header-inner {
    display: flex;
    align-items: center;
    gap: 30px;
    min-height: 76px;
    padding-top: 10px;
    padding-bottom: 10px;
}
.u-header.is-scrolled .u-header-inner { min-height: 64px; }

.u-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: none;
    color: var(--u-ink);
}
.u-mark {
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    flex: none;
    background: var(--u-ink);
    color: var(--u-paper);
    transition: transform .35s var(--u-ease);
}
.u-mark svg { width: 15px; height: 15px; }
.u-brand:hover .u-mark { transform: rotate(-8deg) scale(1.05); }
.u-wordmark {
    font-size: 19px;
    font-weight: 800;
    letter-spacing: -.045em;
    line-height: 1;
}

.u-navlinks {
    display: flex;
    align-items: center;
    gap: 25px;
    margin-left: 15px;
    min-width: 0;
}
.u-navlink {
    display: inline-flex;
    align-items: baseline;
    gap: 7px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--u-ink-3);
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
    transition: color var(--u-dur) var(--u-ease), border-color var(--u-dur) var(--u-ease);
}
.u-navlink i {
    font-family: var(--u-mono);
    font-style: normal;
    font-size: 10px;
    letter-spacing: .06em;
    color: var(--u-ink-4);
}
.u-navlink:hover { color: var(--u-ink); }
.u-navlink.is-active { color: var(--u-ink); border-bottom-color: var(--u-ink); }

.u-nav-right {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    min-width: 0;
}
.u-nav-right-mobile { display: none; align-items: center; gap: 10px; margin-left: auto; }
.u-nav-desktop { display: flex; }
.u-nav-mobile { display: none; }

.u-theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    flex: none;
    color: var(--u-ink-3);
    border: 1px solid transparent;
    transition: color var(--u-dur) var(--u-ease), border-color var(--u-dur) var(--u-ease);
}
.u-theme-toggle:hover { color: var(--u-ink); border-color: var(--u-line-2); }
.u-theme-toggle svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.u-theme-moon { display: none; }
[data-theme="dark"] .u-theme-moon { display: block; }
[data-theme="dark"] .u-theme-sun { display: none; }

.u-menu-wrap { position: relative; }
.u-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    z-index: 60;
    min-width: 190px;
    padding: 5px;
    background: var(--u-surface);
    border: 1px solid var(--u-line-2);
    box-shadow: 0 24px 60px rgba(11, 11, 11, .12);
    animation: u-menu-in .18s var(--u-ease);
}
@keyframes u-menu-in {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: none; }
}
.u-menu-scroll { max-height: 320px; overflow-y: auto; overscroll-behavior: contain; }
.u-menu-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    font-size: 13.5px;
    color: var(--u-ink-2);
    transition: background var(--u-dur) var(--u-ease), padding-left var(--u-dur) var(--u-ease);
}
.u-menu-item:hover { background: var(--u-paper-2); padding-left: 16px; }
.u-menu-item.is-active { color: var(--u-ink); font-weight: 700; }
.u-menu-sep { height: 1px; background: var(--u-line); margin: 5px 0; }
.u-menu-label {
    padding: 10px 12px 5px;
    font-family: var(--u-mono);
    font-size: 10px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}

.u-mobile-panel {
    border-top: 1px solid var(--u-line);
    padding: 10px 0 20px;
    display: grid;
    animation: u-menu-in .2s var(--u-ease);
}
.u-drawer-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 14px 2px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -.01em;
    color: var(--u-ink);
    border-bottom: 1px solid var(--u-line);
    text-align: left;
    width: 100%;
    transition: padding-left var(--u-dur) var(--u-ease);
}
.u-drawer-link:hover { padding-left: 8px; }
.u-drawer-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
    padding-top: 10px;
}
.u-mlang {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 8px 10px;
    font-size: 12px;
    border: 1px solid var(--u-line);
    color: var(--u-ink-3);
    transition: border-color var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease);
}
.u-mlang:hover { border-color: var(--u-ink-3); color: var(--u-ink); }
.u-mlang.is-active { border-color: var(--u-ink); color: var(--u-ink); font-weight: 700; }

.u-nav-right .u-btn-sm,
.u-nav-right .u-btn { white-space: nowrap; }
.u-nav-right .u-btn { font-weight: 300; border-radius: 5px; }

/* 5. footer
   ========================================================================== */
.u-footer {
    margin-top: clamp(60px, 9vw, 130px);
    border-top: 1px solid var(--u-line);
    background: var(--u-paper);
}
.u-footer-mark {
    margin: 0;
    padding: clamp(30px, 5vw, 60px) 0 0;
    font-size: clamp(3rem, 12vw, 10rem);
    font-weight: 850;
    letter-spacing: -.06em;
    line-height: .85;
    color: transparent;
    -webkit-text-stroke: 1px var(--u-line-2);
    user-select: none;
}
.u-footer-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(0, 1fr));
    gap: 40px 30px;
    padding: clamp(40px, 6vw, 70px) 0;
    border-top: 1px solid var(--u-line);
    margin-top: clamp(30px, 5vw, 60px);
}
.u-footer-desc { max-width: 36ch; font-size: 13px; line-height: 1.8; color: var(--u-ink-3); }
.u-footer-title {
    margin-bottom: 15px;
    font-family: var(--u-mono);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}
.u-footer-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; }
.u-footer-list a {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    font-size: 13.5px;
    color: var(--u-ink-2);
    transition: color var(--u-dur) var(--u-ease), padding-left var(--u-dur) var(--u-ease);
}
.u-footer-list a:hover { color: var(--u-ink); padding-left: 6px; }
.u-footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    flex-wrap: wrap;
    padding: 20px 0 30px;
    border-top: 1px solid var(--u-line);
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .06em;
    color: var(--u-ink-4);
}

/* 6. buttons
   ========================================================================== */
.u-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 22px;
    border: 1px solid var(--u-ink);
    background: transparent;
    color: var(--u-ink);
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: -.01em;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    transition: background var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease), border-color var(--u-dur) var(--u-ease), transform var(--u-dur) var(--u-ease);
}
.u-btn:hover { background: var(--u-ink); color: var(--u-paper); }
.u-btn:active { transform: translateY(1px); }
.u-btn svg { width: 16px; height: 16px; flex: none; }

.u-btn-primary { background: var(--u-ink); color: var(--u-paper); }
.u-btn-primary:hover { background: transparent; color: var(--u-ink); }

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

.u-btn-quiet { border-color: transparent; color: var(--u-ink-3); }
.u-btn-quiet:hover { background: transparent; color: var(--u-ink); border-color: var(--u-line-2); }

.u-btn-sm { min-height: 38px; padding: 0 15px; font-size: 11.5px; }
.u-btn-lg { min-height: 54px; padding: 0 30px; font-size: 14px; }
.u-btn-block { width: 100%; }

.u-row-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    flex: none;
    color: var(--u-ink-4);
    border: 1px solid transparent;
    transition: color var(--u-dur) var(--u-ease), border-color var(--u-dur) var(--u-ease);
}
.u-row-btn:hover { color: var(--u-ink); border-color: var(--u-line-2); }
.u-row-btn svg { width: 15px; height: 15px; }
.u-row-btn-danger:hover { color: var(--u-danger); border-color: var(--u-danger); }

.u-row-actions { display: inline-flex; align-items: center; gap: 5px; flex: none; }

.u-page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    min-height: 40px;
    padding: 0 12px;
    border: 1px solid var(--u-line);
    font-family: var(--u-mono);
    font-size: 12px;
    color: var(--u-ink-3);
    transition: border-color var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease);
}
.u-page-btn:hover { border-color: var(--u-ink); color: var(--u-ink); }
.u-pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 40px; flex-wrap: wrap; }

/* 7. forms
   ========================================================================== */
.u-field { display: grid; gap: 8px; min-width: 0; }
.u-field + .u-field { margin-top: 20px; }
.u-label {
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--u-ink-3);
}
.u-input, .u-textarea, .u-select {
    width: 100%;
    min-width: 0;
    min-height: 46px;
    padding: 11px 14px;
    background: var(--u-paper);
    color: var(--u-ink);
    border: 1px solid var(--u-line-2);
    border-radius: var(--u-r);
    font-size: 16px;
    line-height: 1.4;
    -webkit-appearance: none;
    appearance: none;
    transition: border-color var(--u-dur) var(--u-ease), box-shadow var(--u-dur) var(--u-ease);
}
.u-input::placeholder, .u-textarea::placeholder { color: var(--u-ink-4); }
.u-input:hover, .u-textarea:hover, .u-select:hover { border-color: var(--u-line-3); }
.u-input:focus, .u-textarea:focus, .u-select:focus {
    outline: none;
    border-color: var(--u-ink);
    box-shadow: 0 0 0 3px rgba(11, 11, 11, .06);
}
[data-theme="dark"] .u-input:focus,
[data-theme="dark"] .u-textarea:focus,
[data-theme="dark"] .u-select:focus { box-shadow: 0 0 0 3px rgba(245, 245, 243, .1); }
.u-textarea { min-height: 110px; resize: vertical; }
#poll-description { height: 90px; min-height: 90px; }
.u-select {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='none' stroke='%235f5f5f' stroke-width='1.5' stroke-linecap='round' d='m3 4.5 3 3 3-3'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 38px;
}
.u-input-title { height: 45px; min-height: 45px; font-size: clamp(1.1rem, 2vw, 1.45rem); font-weight: 300; letter-spacing: -.02em; padding: 14px; }
.u-input[type="datetime-local"], .u-input[type="number"] { font-family: var(--u-mono); font-size: 14px; }
.u-hint { font-size: 12px; line-height: 1.7; color: var(--u-ink-3); }
.u-counter { font-family: var(--u-mono); font-size: 11px; color: var(--u-ink-4); }
.u-counter.is-over { color: var(--u-danger); }

.u-check {
    width: 17px;
    height: 17px;
    flex: none;
    accent-color: var(--u-ink);
    margin: 0;
}
.u-check-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 13.5px;
}
.u-check-row label { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }

.u-pick-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 0;
    border-bottom: 1px solid var(--u-line);
    font-size: 14px;
    cursor: pointer;
    transition: padding-left var(--u-dur) var(--u-ease);
}
.u-pick-row:last-child { border-bottom: 0; }
.u-pick-row:hover { padding-left: 6px; }
.u-pick-row > .u-check { flex: none; }
.u-pick-row > span { flex: 1; min-width: 0; }
.u-pick-row > img { flex: none; margin-left: auto; }

.u-seg {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}
.u-opt {
    flex: 1 1 0;
    min-width: 0;
    position: relative;
    cursor: pointer;
}
.u-opt input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.u-opt > span {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 2px;
    min-height: 46px;
    padding: 9px 15px;
    border: 1px solid var(--u-line-2);
    background: var(--u-paper);
    color: var(--u-ink-3);
    font-size: 13.5px;
    font-weight: 300;
    text-align: left;
    transition: border-color var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease), background var(--u-dur) var(--u-ease);
}
.u-opt > span small {
    display: block;
    font-size: 11px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--u-faint);
}
.u-opt:hover > span { border-color: var(--u-line-3); color: var(--u-ink); }
.u-opt input:checked + span {
    border-color: var(--u-ink);
    color: var(--u-ink);
    background: var(--u-paper);
    box-shadow: inset 0 -3px 0 var(--u-ink);
}
.u-opt input:focus-visible + span { outline: 2px solid var(--u-focus); outline-offset: 2px; }

.u-switch-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 12px 0;
    border-bottom: 1px solid var(--u-line);
    font-size: 13.5px;
    cursor: pointer;
    transition: padding-left var(--u-dur) var(--u-ease);
}
.u-switch-row:hover { padding-left: 5px; }
.u-switch-row:last-child { border-bottom: 0; }

.u-submit-box { margin-top: 25px; }
.u-form-space { display: grid; gap: 25px; }
.u-copy-field { display: flex; gap: 0; }
.u-copy-field .u-input { border-right: 0; }
.u-turnstile { margin-top: 20px; }

.u-progress-track {
    height: 3px;
    background: var(--u-paper-3);
    overflow: hidden;
}
.u-progress-track > div {
    height: 100%;
    width: 0;
    background: var(--u-ink);
    transition: width .3s var(--u-ease);
}

/* upload */
.image-option-item {
    display: grid;
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--u-line);
    align-items: start;
}
.image-upload-wrapper { min-width: 0; }
.image-upload-area {
    position: relative;
    height: 90px;
    border: 1px dashed var(--u-line-2);
    background: var(--u-paper-2);
    display: grid;
    place-items: center;
    cursor: pointer;
    overflow: hidden;
    transition: border-color var(--u-dur) var(--u-ease), background var(--u-dur) var(--u-ease);
}
.image-upload-area:hover { border-color: var(--u-ink); background: var(--u-paper-3); }
.image-upload-area.is-drag { border-color: var(--u-ink); border-style: solid; background: var(--u-paper-3); }
.upload-placeholder { display: grid; place-items: center; gap: 8px; color: var(--u-ink-4); }
.upload-placeholder svg { width: 26px; height: 26px; }
.upload-preview { position: absolute; inset: 0; }
.upload-preview img { width: 100%; height: 100%; object-fit: cover; }
.upload-preview .remove-image {
    position: absolute;
    right: 5px;
    bottom: 5px;
    padding: 5px 10px;
    font-family: var(--u-mono);
    font-size: 10px;
    letter-spacing: .08em;
    text-transform: uppercase;
    background: var(--u-ink);
    color: var(--u-paper);
}
.upload-progress {
    position: absolute;
    inset: auto 0 0 0;
    padding: 10px;
    background: var(--u-header-bg);
}
/* 8. blocks / cards / lists
   ========================================================================== */
.u-card {
    display: block;
    padding: 30px;
    background: var(--u-surface);
    border: 1px solid var(--u-line);
    transition: border-color var(--u-dur) var(--u-ease), transform var(--u-dur) var(--u-ease);
}
a.u-card:hover { border-color: var(--u-ink); transform: translateY(-2px); }
.u-card-flush { padding: 0; }
.u-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    flex-wrap: wrap;
    padding: 20px 25px;
    border-bottom: 1px solid var(--u-line);
}

.u-list-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--u-line);
    transition: padding var(--u-dur) var(--u-ease);
}
.u-list-row:last-child { border-bottom: 0; }
.u-list-row:hover { padding-left: 8px; }
.u-list-title {
    font-size: 16px;
    font-weight: 650;
    letter-spacing: -.02em;
    transition: opacity var(--u-dur) var(--u-ease);
}
.u-list-title:hover { opacity: .6; }
.u-list-sub {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 5px;
    font-family: var(--u-mono);
    font-size: 11.5px;
    letter-spacing: .04em;
    color: var(--u-ink-3);
}
.u-list-actions { display: flex; align-items: center; gap: 5px; flex: none; }

.u-table-wrap { overflow-x: auto; overscroll-behavior-x: contain; border: 1px solid var(--u-line); }
.u-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
    text-align: left;
}
.u-table th {
    padding: 14px 18px;
    border-bottom: 1px solid var(--u-ink);
    font-family: var(--u-mono);
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--u-ink-3);
    white-space: nowrap;
    background: var(--u-paper);
}
.u-table td {
    padding: 15px 18px;
    border-bottom: 1px solid var(--u-line);
    vertical-align: middle;
}
.u-table tr:last-child td { border-bottom: 0; }
.u-table tbody tr { transition: background var(--u-dur) var(--u-ease); }
.u-table tbody tr:hover { background: var(--u-paper-2); }
.u-table a:not(.u-btn):not(.u-icon-btn) { text-decoration: underline; text-underline-offset: 3px; }
.u-cell-end { text-align: right; }
.u-cell-tight { width: 1%; white-space: nowrap; }

.u-empty, .u-empty-state {
    padding: 40px 20px;
    text-align: center;
    font-size: 13.5px;
    color: var(--u-ink-3);
}
.u-empty-state { display: grid; gap: 15px; justify-items: center; padding: 60px 20px; border: 1px dashed var(--u-line-2); }

/* stats */
.u-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border: 1px solid var(--u-line);
}
.u-stat { padding: 25px; border-right: 1px solid var(--u-line); min-width: 0; }
.u-stat:last-child { border-right: 0; }
.u-stat-n {
    font-size: clamp(1.7rem, 3vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -.045em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.u-stat-n-brand { text-decoration: underline; text-decoration-thickness: 3px; text-underline-offset: 6px; }
.u-stat-l {
    display: block;
    margin-top: 10px;
    font-family: var(--u-mono);
    font-size: 10.5px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--u-ink-3);
}

/* meters / results */
.u-meter { padding: 15px 0; border-bottom: 1px solid var(--u-line); }
.u-meter:last-child { border-bottom: 0; }
.u-meter-head { display: flex; align-items: baseline; justify-content: space-between; gap: 15px; }
.u-meter-label { font-size: 14.5px; font-weight: 600; letter-spacing: -.01em; }
.u-meter-value { font-family: var(--u-mono); font-size: 13px; font-variant-numeric: tabular-nums; }
.u-meter-track { height: 6px; margin-top: 10px; background: var(--u-paper-3); overflow: hidden; }
.u-meter-fill {
    height: 100%;
    background: var(--u-ink);
    width: 0;
    transition: width .6s var(--u-ease);
}
.u-meter-fill.is-alt { background: var(--u-ink-3); }
.u-result-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 20px;
    font-family: var(--u-mono);
    font-size: 11.5px;
    letter-spacing: .04em;
    color: var(--u-ink-3);
}

/* trend */
.u-trend { display: flex; align-items: flex-end; gap: 3px; height: 90px; }
.u-trend-bar {
    flex: 1;
    height: 100%;
    display: flex;
    align-items: flex-end;
    background: var(--u-paper-3);
    min-width: 3px;
    transition: background var(--u-dur) var(--u-ease);
}
.u-trend-bar > i {
    display: block;
    width: 100%;
    min-height: 2px;
    background: var(--u-ink-3);
    transition: background var(--u-dur) var(--u-ease);
}
.u-trend-bar:hover > i { background: var(--u-ink); }
.u-trend-foot {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 10px;
    font-family: var(--u-mono);
    font-size: 10px;
    letter-spacing: .06em;
    color: var(--u-ink-4);
}

.u-answer-list { list-style: none; margin: 0; padding: 0; }
.u-answer-list li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 15px;
    padding: 12px 0;
    border-bottom: 1px solid var(--u-line);
    font-size: 13.5px;
}
.u-answer-list li:last-child { border-bottom: 0; }
.u-answer-list time { flex: none; font-family: var(--u-mono); font-size: 11px; letter-spacing: .04em; }

/* 9. badges / chips / alerts
   ========================================================================== */
.u-badge, .u-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 9px;
    border: 1px solid var(--u-line-2);
    border-radius: var(--u-r-pill);
    font-family: var(--u-mono);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--u-ink-3);
    white-space: nowrap;
    line-height: 1.6;
}
.u-chip-alt { border-style: dashed; }
.u-badge-ok { border-color: var(--u-ink); color: var(--u-ink); }
.u-badge-ok::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--u-ink); }
.u-badge-off { border-color: var(--u-line); color: var(--u-ink-4); }
[data-theme="dark"] .u-badge-ok::before { background: var(--u-ink); }
.u-badge-warn, .u-badge-warning { border-color: var(--u-warn); color: var(--u-warn); background: var(--u-warn-soft); }
.u-badge-danger { border-color: var(--u-danger); color: var(--u-danger); background: var(--u-danger-soft); }
.u-badge-info { border-style: dashed; }

.u-alert, .u-alert-ok, .u-alert-info {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 15px 18px;
    margin-bottom: 25px;
    border: 1px solid var(--u-line);
    border-left: 2px solid var(--u-ink);
    background: var(--u-paper-2);
    font-size: 13.5px;
    line-height: 1.7;
}
.u-alert { border-left-color: var(--u-danger); background: var(--u-danger-soft); color: var(--u-danger); }
.u-alert-ok { border-left-color: var(--u-ink); }
.u-alert-info { border-left-color: var(--u-line-3); }
.u-alert .u-row, .u-alert-ok .u-row { align-items: flex-start; width: 100%; }
.u-alert .u-icon-btn, .u-alert-ok .u-icon-btn { color: inherit; }

/* 10. tabs
   ========================================================================== */
.u-tabs {
    display: flex;
    gap: 30px;
    border-bottom: 1px solid var(--u-line);
    overflow-x: auto;
    scrollbar-width: none;
}
.u-tabs::-webkit-scrollbar { display: none; }
.u-tab {
    position: relative;
    padding: 12px 0;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--u-ink-3);
    white-space: nowrap;
    transition: color var(--u-dur) var(--u-ease);
}
.u-tab::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -1px;
    height: 2px;
    background: var(--u-ink);
    transition: right .25s var(--u-ease);
}
.u-tab:hover { color: var(--u-ink); }
.u-tab:hover::after { right: 0; }
.u-tab.is-active { color: var(--u-ink); }
.u-tab.is-active::after { right: 0; }

/* 11. create studio
   ========================================================================== */
.u-create-card {
    position: relative;
    padding-top: 42px;
    border: 1px solid var(--u-line);
    border-radius: 16px;
    background: var(--u-paper-2);
}
.u-create-card::before {
    content: "create_poll";
    position: absolute;
    inset: 0 0 auto;
    display: flex;
    align-items: center;
    height: 42px;
    padding: 0 18px 0 62px;
    border-bottom: 1px solid var(--u-line);
    border-radius: 15px 15px 0 0;
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .04em;
    color: var(--u-ink-4);
    background-image:
        radial-gradient(circle 4.5px at 4.5px 4.5px, #ff5f57 99%, transparent),
        radial-gradient(circle 4.5px at 4.5px 4.5px, #febc2e 99%, transparent),
        radial-gradient(circle 4.5px at 4.5px 4.5px, #28c840 99%, transparent);
    background-position: 18px center, 34px center, 50px center;
    background-size: 9px 9px;
    background-repeat: no-repeat;
}
.u-create-body { padding: clamp(20px, 3vw, 35px); }
.u-create-actions {
    position: sticky;
    bottom: 0;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    flex-wrap: wrap;
    padding: 15px clamp(20px, 3vw, 35px);
    border-top: 1px solid var(--u-line);
    border-radius: 0 0 15px 15px;
    background: var(--u-header-bg);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
}
.u-step-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-left: auto; }
.u-step-actions .u-btn { font-weight: 300; border-radius: 5px; }

.u-steps-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 25px;
}
.u-step-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 16px;
    border: 1px solid var(--u-line-2);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 300;
    color: var(--u-ink-3);
    transition: background var(--u-dur) var(--u-ease), border-color var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease);
}
.u-step-pill i {
    display: inline;
    width: auto;
    height: auto;
    border: 0;
    border-radius: 0;
    background: none;
    font-family: var(--u-mono);
    font-style: normal;
    font-size: 11px;
    opacity: .65;
}
.u-step-pill:hover { border-color: var(--u-ink); color: var(--u-ink); }
.u-step-pill.is-active {
    background: var(--u-ink);
    border-color: var(--u-ink);
    color: var(--u-paper);
}
.u-step-pill.is-active i { opacity: 1; }
.u-step-line { display: none; }

.u-step-panel { animation: u-step-in .3s var(--u-ease); }
@keyframes u-step-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: none; }
}

.u-presets {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin: 10px 0 20px;
}
.u-preset {
    min-height: 34px;
    padding: 0 13px;
    border: 1px solid var(--u-line);
    border-radius: var(--u-r-pill);
    font-size: 12px;
    color: var(--u-ink-3);
    transition: border-color var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease);
}
.u-preset:hover { border-color: var(--u-ink); color: var(--u-ink); }

.u-opt-list { display: grid; }
.u-opt-row {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--u-line);
}
.u-opt-index {
    font-family: var(--u-mono);
    font-size: 12px;
    color: var(--u-ink-4);
    text-align: center;
}
.u-opt-row.is-dup,
.u-opt-item.is-dup { background: var(--u-danger-soft); box-shadow: inset 2px 0 0 var(--u-danger); }
.u-opt-row .u-input { height: 40px; min-height: 40px; border-color: transparent; padding-left: 0; padding-right: 0; }
.u-opt-row .u-input:hover { border-color: transparent; border-bottom-color: var(--u-line-2); }
.u-opt-row .u-input:focus { border-color: transparent; border-bottom-color: var(--u-ink); box-shadow: none; }
.u-opt-tools { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.u-opt-add { margin-top: 15px; }
.u-opt-item {
    display: grid;
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--u-line);
}
.u-item-body { display: grid; gap: 10px; min-width: 0; }
.u-item-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }

.u-bulk-panel {
    margin-top: 15px;
    padding: 20px;
    border: 1px solid var(--u-line);
    background: var(--u-paper-2);
    display: grid;
    gap: 15px;
}

.u-stepper {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--u-line-2);
    width: fit-content;
}
.u-stepper button {
    width: 44px;
    height: 44px;
    font-size: 16px;
    color: var(--u-ink-3);
    transition: background var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease);
}
.u-stepper button:hover { background: var(--u-ink); color: var(--u-paper); }
.u-stepper input {
    width: 60px;
    height: 44px;
    border: 0;
    border-left: 1px solid var(--u-line-2);
    border-right: 1px solid var(--u-line-2);
    background: transparent;
    text-align: center;
    font-family: var(--u-mono);
    font-size: 14px;
    -moz-appearance: textfield;
}
.u-stepper input::-webkit-outer-spin-button,
.u-stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.u-stepper input:focus { outline: none; background: var(--u-paper-2); }

.u-swatches {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 5px;
    margin-bottom: 25px;
}
.u-swatch {
    position: relative;
    display: grid;
    gap: 10px;
    padding: 15px;
    border: 1px solid var(--u-line);
    cursor: pointer;
    transition: border-color var(--u-dur) var(--u-ease);
}
.u-swatch:hover { border-color: var(--u-line-3); }
.u-swatch input { position: absolute; opacity: 0; pointer-events: none; }
.u-swatch-chip {
    display: block;
    height: 46px;
    background: var(--p-bg, #fff);
    border: 1px solid rgba(128, 128, 128, .35);
    position: relative;
    overflow: hidden;
}
.u-swatch-chip::before {
    content: "";
    position: absolute;
    left: 10px;
    top: 10px;
    width: 46%;
    height: 6px;
    background: var(--p-accent, #0b0b0b);
}
.u-swatch-chip::after {
    content: "";
    position: absolute;
    left: 10px;
    bottom: 10px;
    right: 10px;
    height: 6px;
    background: var(--p-bar, #ccc);
}
.u-swatch-name { font-size: 13px; font-weight: 600; letter-spacing: -.01em; }
.u-swatch:has(input:checked) { border-color: var(--u-ink); box-shadow: inset 0 -3px 0 var(--u-ink); }
.u-swatch input:checked ~ .u-swatch-chip { outline: 1px solid var(--u-ink); outline-offset: 3px; }
.u-swatch input:checked ~ .u-swatch-name { font-weight: 750; }
.u-swatch input:checked ~ .u-tpl-demo { display: inline-block; }
.u-swatch input:focus-visible ~ .u-swatch-chip { outline: 2px solid var(--u-focus); outline-offset: 3px; }
.u-tpl-demo {
    display: none;
    font-family: var(--u-mono);
    font-size: 10px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--u-ink-3);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.u-swatch:has(input:checked) .u-tpl-demo { display: inline-block; }
.u-tpl-demo:hover { color: var(--u-ink); }

.u-studio { display: grid; }
.u-studio-preview { position: relative; }

.u-prev {
    border: 1px solid #e5e2d8;
    background: var(--p-bg, #fff);
    color: #16241b;
    color-scheme: light;
    padding: 25px;
    transition: max-width .3s var(--u-ease);
}
.u-prev-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 15px;
}
.u-prev-title { font-size: 19px; font-weight: 700; letter-spacing: -.02em; line-height: 1.3; color: #16241b; }
.u-prev-desc { margin-top: 8px; font-size: 12.5px; color: #55605a; line-height: 1.7; }
.u-prev-options { display: grid; gap: 5px; margin-top: 15px; }
.u-prev-options > * {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border: 1px solid #e5e2d8;
    background: #fff;
    color: #16241b;
    font-size: 13px;
}
.u-prev-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #e5e2d8;
}
.u-prev-btn {
    display: inline-flex;
    align-items: center;
    padding: 9px 20px;
    background: var(--p-accent, #16241b);
    color: #fff;
    font-size: 12px;
    font-weight: 300;
}
.u-prev-note { font-family: var(--u-mono); font-size: 10.5px; color: #6f7a72; }
.u-device { display: inline-flex; border: 1px solid var(--u-line); }
.u-device button {
    display: grid;
    place-items: center;
    width: 34px;
    height: 30px;
    color: var(--u-ink-4);
    transition: color var(--u-dur) var(--u-ease), background var(--u-dur) var(--u-ease);
}
.u-device button svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.u-device button.is-active { background: var(--u-ink); color: var(--u-paper); }
.u-thumb { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }

/* 13. rules / faq / prose
   ========================================================================== */
.u-rule-block { padding-bottom: 0; }
.u-rule-card {
    border: 1px solid var(--u-line);
    padding: clamp(20px, 3vw, 30px);
    background: var(--u-surface);
}
.u-rule-head { border-bottom: 1px solid var(--u-line); padding-bottom: 15px; margin-bottom: 15px; align-items: center; }
.u-rule-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.u-rule-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.u-rule-list li {
    position: relative;
    padding-left: 20px;
    font-size: 13.5px;
    color: var(--u-ink-2);
    line-height: 1.7;
}
.u-rule-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .62em;
    width: 8px;
    height: 1px;
    background: var(--u-ink-3);
}
.u-rule-custom {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed var(--u-line);
    font-size: 13.5px;
    color: var(--u-ink-3);
    line-height: 1.8;
}

.u-faq { border-bottom: 1px solid var(--u-line); }
.u-faq summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 0;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -.01em;
    cursor: pointer;
    list-style: none;
    transition: padding-left var(--u-dur) var(--u-ease);
}
.u-faq summary::-webkit-details-marker { display: none; }
.u-faq summary:hover { padding-left: 8px; }
.u-faq summary svg { width: 16px; height: 16px; flex: none; color: var(--u-ink-4); transition: transform .25s var(--u-ease); }
.u-faq[open] summary svg { transform: rotate(180deg); }
.u-faq-body { padding: 0 0 20px; max-width: 72ch; font-size: 13.5px; color: var(--u-ink-3); line-height: 1.8; }
.u-faq-body p { margin: 0; }

.u-prose { font-size: 14.5px; line-height: 1.9; color: var(--u-ink-2); max-width: 72ch; }
.u-prose h2 { margin: 40px 0 15px; font-size: var(--u-h2); }
.u-prose h3 { margin: 30px 0 12px; font-size: 18px; }
.u-prose p { margin: 0 0 15px; }
.u-prose ul, .u-prose ol { padding-left: 22px; margin: 0 0 15px; }
.u-prose li + li { margin-top: 6px; }
.u-prose a { text-decoration: underline; text-underline-offset: 3px; }
.u-prose code { font-family: var(--u-mono); font-size: .9em; padding: 2px 5px; background: var(--u-paper-2); }
.u-prose blockquote {
    margin: 25px 0;
    padding: 5px 0 5px 20px;
    border-left: 2px solid var(--u-ink);
    font-size: 15px;
}
.u-faq h2, .u-faq h3 { font-size: 15px; }

/* 14. auth / account
   ========================================================================== */
.u-auth { max-width: 460px; margin: 0 auto; }
.u-auth-head { margin-bottom: 25px; }
.u-auth-title { font-size: clamp(1.7rem, 3vw, 2.2rem); font-weight: 750; letter-spacing: -.04em; }
.u-auth-desc { margin-top: 10px; font-size: 13.5px; color: var(--u-ink-3); line-height: 1.75; }
.u-auth .u-card { padding: clamp(25px, 4vw, 40px); }
.u-avatar {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    flex: none;
    border: 1px solid var(--u-ink);
    font-family: var(--u-mono);
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
}

.u-404 {
    font-size: clamp(5rem, 18vw, 11rem);
    font-weight: 850;
    letter-spacing: -.06em;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1.5px var(--u-ink);
}

/* 15. poll results / live
   ========================================================================== */
.u-qr { display: grid; gap: 10px; justify-items: center; }
.u-qr svg, .u-qr img { width: min(200px, 60vw); height: auto; border: 1px solid var(--u-line); padding: 10px; background: #fff; }

.u-live { display: grid; gap: 25px; }
.u-live-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--u-line);
}
.u-live-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -.02em; }
.u-live-brand svg { width: 18px; height: 18px; }
.u-live-state { display: inline-flex; align-items: center; gap: 8px; font-family: var(--u-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--u-ink-3); }
.u-live-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--u-ink);
    animation: u-pulse 1.8s var(--u-ease) infinite;
}
@keyframes u-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .22; } }
.u-live-title { font-size: var(--u-h1); letter-spacing: -.045em; }
.u-live-main { display: grid; gap: 25px; }
.u-live-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: clamp(25px, 4vw, 50px); align-items: start; }
.u-live-side { display: grid; gap: 20px; }
.u-live-list { display: grid; }
.u-live-row { padding: 15px 0; border-bottom: 1px solid var(--u-line); }
.u-live-row-head { display: flex; align-items: baseline; justify-content: space-between; gap: 15px; margin-bottom: 10px; }
.u-live-label { font-size: 15px; font-weight: 600; letter-spacing: -.015em; }
.u-live-value { font-family: var(--u-mono); font-size: 18px; font-variant-numeric: tabular-nums; }
.u-live-track { height: 8px; background: var(--u-paper-3); overflow: hidden; }
.u-live-fill { height: 100%; background: var(--u-ink); width: 0; transition: width .8s var(--u-ease); }
.u-live-count {
    font-size: clamp(3rem, 9vw, 6.5rem);
    font-weight: 850;
    letter-spacing: -.05em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.u-live-count strong { display: block; }
.u-live-empty { padding: 50px 20px; text-align: center; border: 1px dashed var(--u-line-2); color: var(--u-ink-3); }
.u-live-qr { display: grid; gap: 10px; justify-items: center; }
.u-live-foot { margin-top: 25px; padding-top: 15px; border-top: 1px solid var(--u-line); font-family: var(--u-mono); font-size: 11px; color: var(--u-ink-4); }

/* 16. home
   ========================================================================== */
.hm-page { display: block; }
.hm-body { background: var(--u-paper); }

.hm-hero {
    --hm-accent: #2f7b52;
    --hm-accent-soft: rgba(47, 123, 82, .7);
    --hm-accent-glow: rgba(47, 123, 82, .45);
    padding: 60px 0;
    text-align: center;
}
[data-theme="dark"] .hm-hero {
    --hm-accent: #7fb37a;
    --hm-accent-soft: rgba(127, 179, 122, .72);
    --hm-accent-glow: rgba(127, 179, 122, .4);
}
.hm-badge { position: relative; display: inline-block; }
.hm-badge::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--u-r-pill);
    border: 1px solid var(--u-line);
    background: var(--u-paper-2);
    transform: translate(7px, -7px);
}
.hm-pill {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 8px 16px;
    border: 1px solid var(--u-line-2);
    border-radius: var(--u-r-pill);
    background: var(--u-paper);
    box-shadow: 0 6px 18px rgba(0, 0, 0, .07);
    font-size: 12.5px;
    letter-spacing: .01em;
    color: var(--u-ink-2);
}
.hm-pill::before { content: ""; width: 6px; height: 6px; flex: none; border-radius: 50%; background: var(--hm-accent); }
.hm-pill::after { content: ""; width: 2px; height: 13px; flex: none; background: var(--u-ink); animation: u-caret 1.1s steps(1, end) infinite; }
@keyframes u-caret { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
.hm-title {
    margin: 30px auto 0;
    max-width: 24ch;
    font-size: var(--u-display);
    font-weight: 800;
    letter-spacing: -.055em;
    line-height: .99;
    text-wrap: balance;
}
.hm-focus {
    position: relative;
    display: inline-block;
    margin: 22px 0 0;
    font-size: clamp(1.4rem, 3.6vw, 3rem);
    font-weight: 750;
    letter-spacing: -.03em;
    line-height: 1.25;
    color: var(--hm-accent-soft);
}
.hm-focus-in {
    position: relative;
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .25em;
    user-select: none;
}
.hm-unit { cursor: pointer; filter: blur(4px); transition: filter .5s var(--u-ease); }
.hm-unit.is-on { filter: blur(0); }
.hm-frame {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    opacity: 0;
    pointer-events: none;
    transition: transform .38s var(--u-ease), width .38s var(--u-ease), height .38s var(--u-ease), opacity .3s var(--u-ease);
}
.hm-focus.is-ready .hm-frame { opacity: 1; }
.hm-frame i {
    position: absolute;
    width: 12px;
    height: 12px;
    border: 0 solid var(--hm-accent);
    border-radius: 2px;
    filter: drop-shadow(0 0 4px var(--hm-accent-glow));
}
.hm-frame i:nth-child(1) { top: -8px; left: -8px; border-top-width: 2.5px; border-left-width: 2.5px; }
.hm-frame i:nth-child(2) { top: -8px; right: -8px; border-top-width: 2.5px; border-right-width: 2.5px; }
.hm-frame i:nth-child(3) { bottom: -8px; left: -8px; border-bottom-width: 2.5px; border-left-width: 2.5px; }
.hm-frame i:nth-child(4) { bottom: -8px; right: -8px; border-bottom-width: 2.5px; border-right-width: 2.5px; }
.hm-sub {
    margin: 22px auto 0;
    max-width: 52ch;
    font-size: clamp(.95rem, 1.4vw, 1.05rem);
    line-height: 1.75;
    color: var(--u-ink-3);
}

.hm-work { margin-top: clamp(10px, 2vw, 30px); }
.hm-work-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: clamp(30px, 5vw, 70px);
    align-items: start;
}
.hm-work-main { min-width: 0; }
.hm-side { min-width: 0; display: grid; gap: 30px; }
.hm-side-sticky { position: sticky; top: 100px; display: grid; gap: 15px; }
.hm-side-block { border-top: 1px solid var(--u-line); padding-top: 20px; }
.hm-side-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 10px;
    font-family: var(--u-mono);
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}

.hm-sec { padding: 50px 0; border-top: 1px solid var(--u-line); }
.hm-sec-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 25px 50px;
    align-items: end;
    margin-bottom: clamp(30px, 4vw, 50px);
}
.hm-h2 {
    font-size: clamp(1.9rem, 4vw, 3.2rem);
    font-weight: 780;
    letter-spacing: -.05em;
    line-height: 1.02;
    max-width: 16ch;
}
.hm-lead { margin: 0; font-size: 14px; line-height: 1.8; color: var(--u-ink-3); max-width: 52ch; }
.hm-grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 50px; }
.hm-cell { padding: 25px 0; border-top: 1px solid var(--u-line); }
.hm-cell-n {
    display: block;
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .12em;
    color: var(--u-ink-4);
}
.hm-cell-t { margin: 12px 0 8px; font-size: 19px; font-weight: 700; letter-spacing: -.025em; }
.hm-cell-d { margin: 0; font-size: 13.5px; line-height: 1.8; color: var(--u-ink-3); }

.hm-steps { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--u-line); }
.hm-step {
    display: grid;
    grid-template-columns: 60px minmax(0, 1fr);
    gap: 25px;
    align-items: baseline;
    padding: 30px 0;
    border-bottom: 1px solid var(--u-line);
    transition: padding var(--u-dur) var(--u-ease);
}
.hm-step:hover { padding-left: 10px; }
.hm-step-n {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -.04em;
    color: transparent;
    -webkit-text-stroke: 1px var(--u-ink-3);
    line-height: 1;
}
.hm-step-t { font-size: 21px; font-weight: 700; letter-spacing: -.03em; }
.hm-step-d { margin: 8px 0 0; max-width: 62ch; font-size: 13.5px; line-height: 1.8; color: var(--u-ink-3); }

.hm-how {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: clamp(30px, 5vw, 70px);
    align-items: start;
}
/* 深色窗口卡片（首页「如何使用」「常见问题」共用） */
.hm-dcard { position: relative; isolation: isolate; }
.hm-dcard::before,
.hm-dcard::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    border-radius: 12px;
    background: #111;
}
.hm-dcard::before { transform: translate(11px, -11px); opacity: .34; }
.hm-dcard::after { transform: translate(22px, -22px); opacity: .15; }

.hm-win {
    display: grid;
    border-radius: 12px;
    background: #111;
    border: 1px solid rgba(255, 255, 255, .09);
    color: #f5f5f3;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(11, 11, 11, .22);
}
.hm-win-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, .09);
}
.hm-win-dots { display: inline-flex; gap: 5px; }
.hm-win-dots i { width: 9px; height: 9px; border-radius: 50%; background: #ff5f57; }
.hm-win-dots i:nth-child(2) { background: #febc2e; }
.hm-win-dots i:nth-child(3) { background: #28c840; }
.hm-win-label {
    min-width: 0;
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .04em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: rgba(255, 255, 255, .5);
}
.hm-win-body { display: grid; gap: 18px; padding: 22px; }

/* 叠放窗口 + 轮播（首页创建区右侧预览） */
.hm-win-stack { position: relative; isolation: isolate; margin: 68px 36px 0 0; }
.hm-win-stack .hm-win--front {
    position: relative;
    z-index: 3;
    height: 440px;
    grid-template-rows: auto minmax(0, 1fr);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, .6), 0 26px 56px rgba(11, 11, 11, .26);
}
.hm-win-stack .hm-win--mid,
.hm-win-stack .hm-win--deep {
    position: absolute;
    inset: 0;
    align-content: start;
    pointer-events: none;
    border-color: rgba(255, 255, 255, .11);
    box-shadow: none;
}
.hm-win-stack .hm-win--mid { z-index: 2; transform: translate(18px, -34px); }
.hm-win-stack .hm-win--deep { z-index: 1; transform: translate(36px, -68px); }
.hm-win-stack .hm-win-body { padding: 0; overflow: auto; align-items: start; }
.hm-win-stack .hm-win-body::-webkit-scrollbar { width: 6px; height: 6px; }
.hm-win-stack .hm-win-body::-webkit-scrollbar-track { background: transparent; }
.hm-win-stack .hm-win-body::-webkit-scrollbar-thumb { background: #3a3a3a; border: 0; border-radius: 99px; }
.hm-win-stack .hm-win-body .u-prev {
    border: 0;
    background: #111111;
    color: #f0f0ee;
}
.hm-win-stack .hm-win-body .u-prev-title { color: #f5f5f3; }
.hm-win-stack .hm-win-body .u-prev-desc { color: rgba(255, 255, 255, .55); }
.hm-win-stack .hm-win-body .u-prev-options > * {
    background: rgba(255, 255, 255, .05);
    border-color: rgba(255, 255, 255, .1);
    color: #f2f2f0;
}
.hm-win-stack .hm-win-body .u-prev-option > i { border-color: rgba(255, 255, 255, .45); }
.hm-win-stack .hm-win-body .u-prev-thumb {
    background: rgba(255, 255, 255, .06);
    border-color: rgba(255, 255, 255, .12);
}
.hm-win-stack .hm-win-body .u-prev-foot { border-top-color: rgba(255, 255, 255, .1); }
.hm-win-stack .hm-win-body .u-prev-note { color: rgba(255, 255, 255, .45); }
.hm-win-stack .hm-win-body .u-prev-btn { box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .16); }
.hm-win-stack .hm-win-body .u-prev.is-mobile { max-width: 240px; margin: 0 auto; }

.hm-win-tag {
    display: inline-flex;
    align-items: center;
    flex: none;
    margin-left: auto;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, .14);
    background: var(--tag, #2f7b52);
    color: #f5f5f3;
    font-family: var(--u-mono);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: .04em;
    line-height: 1.7;
    white-space: nowrap;
}

.hm-win-copy {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    flex: none;
    border-radius: 6px;
    color: rgba(255, 255, 255, .62);
    transition: color var(--u-dur) var(--u-ease), background var(--u-dur) var(--u-ease);
}
.hm-win-copy:hover { color: #f5f5f3; background: rgba(255, 255, 255, .1); }
.hm-win-copy svg {
    width: 15px;
    height: 15px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.hm-win-copy-ok { display: none; }
.hm-win-copy.is-done { color: #7fb37a; }
.hm-win-copy.is-done .hm-win-copy-i { display: none; }
.hm-win-copy.is-done .hm-win-copy-ok { display: block; }

.hm-win-foot { position: relative; display: flex; align-items: center; justify-content: center; margin-right: 36px; }
.hm-win-foot > .u-device { position: absolute; right: 0; }
.hm-win-nav { display: flex; align-items: center; justify-content: center; gap: 5px; }
.hm-win-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    flex: none;
    border-radius: 50%;
    border: 1px solid var(--u-line);
    color: var(--u-ink-3);
    transition: border-color var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease);
}
.hm-win-arrow:hover { border-color: var(--u-ink); color: var(--u-ink); }
.hm-win-arrow svg {
    width: 15px;
    height: 15px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.9;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.hm-win-pips { display: inline-flex; align-items: center; gap: 5px; padding: 0 10px; }
.hm-win-pips button {
    width: 6px;
    height: 6px;
    flex: none;
    border-radius: 50%;
    background: var(--u-line-2);
    transition: background var(--u-dur) var(--u-ease);
}
.hm-win-pips button:hover { background: var(--u-line-3); }
.hm-win-pips button.is-active { background: var(--u-ink); }
.hm-how-q {
    margin: 0;
    font-size: 16px;
    font-weight: 650;
    letter-spacing: -.02em;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.hm-how-opts { display: grid; gap: 12px; }
.hm-how-opt {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 40px;
    align-items: center;
    gap: 12px;
}
.hm-how-track {
    display: block;
    height: 6px;
    border-radius: var(--u-r-pill);
    background: rgba(255, 255, 255, .14);
    overflow: hidden;
}
.hm-how-track i {
    display: block;
    height: 100%;
    width: var(--w, 0);
    border-radius: var(--u-r-pill);
    background: #f5f5f3;
}
.hm-how-pct {
    font-family: var(--u-mono);
    font-size: 11.5px;
    font-variant-numeric: tabular-nums;
    text-align: right;
    color: rgba(255, 255, 255, .6);
}
.hm-how-meta {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, .09);
}
.hm-how-meta strong {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -.04em;
    font-variant-numeric: tabular-nums;
}
.hm-how-meta span {
    font-family: var(--u-mono);
    font-size: 10.5px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .5);
}

.hm-faq-card .u-btn { justify-self: center; border-color: rgba(255, 255, 255, .3); color: #f5f5f3; }
.hm-faq-card .u-btn:hover { background: #f5f5f3; border-color: #f5f5f3; color: #111; }
.hm-chat-q {
    margin: 0;
    justify-self: start;
    max-width: 88%;
    padding: 11px 15px;
    border-radius: 12px 12px 12px 3px;
    background: rgba(255, 255, 255, .1);
    font-size: 13.5px;
    line-height: 1.6;
}
.hm-chat-a {
    margin: 0;
    justify-self: end;
    max-width: 88%;
    padding: 11px 15px;
    border-radius: 12px 12px 3px 12px;
    background: #f5f5f3;
    color: #111;
    font-size: 13.5px;
    line-height: 1.6;
}

/* 发现投票（左列表 + 右详情卡） */
.hm-discover-head {
    max-width: 62ch;
    margin: 0 auto 45px;
    text-align: center;
}
.hm-discover-head .hm-h2 { margin-top: 15px; }
.hm-discover-head > p { margin: 15px 0 0; font-size: clamp(.95rem, 1.5vw, 1.05rem); line-height: 1.75; color: var(--u-ink-3); }

.hm-pick { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 30px; align-items: start; }
.hm-pick-side { display: grid; gap: 15px; }
.hm-pick-tabs { display: flex; gap: 5px; }
.hm-pick-tabs button {
    flex: 1 1 0;
    min-width: 0;
    min-height: 34px;
    padding: 0 10px;
    border: 1px solid var(--u-line-2);
    border-radius: 5px;
    font-size: 12px;
    font-weight: 300;
    color: var(--u-ink-3);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: border-color var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease), background var(--u-dur) var(--u-ease);
}
.hm-pick-tabs button:hover { border-color: var(--u-ink); color: var(--u-ink); }
.hm-pick-tabs button.is-active { background: var(--u-ink); border-color: var(--u-ink); color: var(--u-paper); }

.hm-pick-list { display: grid; gap: 5px; }
.hm-pick-item {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid transparent;
    border-radius: 8px;
    text-align: left;
    color: var(--u-ink-3);
    transition: background var(--u-dur) var(--u-ease), border-color var(--u-dur) var(--u-ease), color var(--u-dur) var(--u-ease);
}
.hm-pick-item:hover { background: var(--u-paper-2); color: var(--u-ink); }
.hm-pick-item.is-active {
    background: var(--u-paper-2);
    border-color: var(--u-line-2);
    color: var(--u-ink);
}
.hm-pick-ico {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: var(--u-paper-3);
    color: var(--u-ink-3);
}
.hm-pick-ico svg { width: 16px; height: 16px; }
.hm-pick-item.is-active .hm-pick-ico { background: var(--u-ink); color: var(--u-paper); }
.hm-pick-text { display: grid; gap: 2px; min-width: 0; }
.hm-pick-name { font-size: 13.5px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hm-pick-meta { font-family: var(--u-mono); font-size: 10.5px; color: var(--u-ink-4); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.hm-pick-panel {
    min-height: 300px;
    padding: clamp(25px, 3vw, 40px);
    border: 1px solid var(--u-line);
    border-radius: 16px;
    background: var(--u-paper-2);
}
.hm-pick-top { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.hm-pick-tile {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    flex: none;
    border-radius: 12px;
    background: var(--u-paper-3);
    color: var(--u-ink);
}
.hm-pick-tile svg { width: 20px; height: 20px; }
.hm-pick-h { margin: 0; min-width: 0; font-size: var(--u-h3); font-weight: 700; letter-spacing: -.02em; }
.hm-pick-votes { margin-left: auto; flex: none; font-family: var(--u-mono); font-size: 12px; color: var(--u-ink-3); }
.hm-pick-p { margin: 0 0 25px; max-width: 62ch; font-size: 14px; line-height: 1.8; color: var(--u-ink-3); }
.hm-pick-box {
    margin-bottom: 25px;
    padding: 15px 20px;
    border: 1px solid var(--u-line);
    border-radius: 12px;
    background: var(--u-paper);
}
.hm-pick-box-t {
    margin: 0 0 5px;
    font-family: var(--u-mono);
    font-size: 10.5px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}
.hm-pick-url { margin: 0; font-family: var(--u-mono); font-size: 13px; color: var(--u-ink-2); overflow-wrap: anywhere; }
.hm-pick-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--u-ink);
    transition: gap var(--u-dur) var(--u-ease);
}
.hm-pick-link:hover { gap: 12px; }
.hm-pick-link svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.hm-reviews { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
.hm-review { margin: 0; display: grid; gap: 20px; }
.hm-review blockquote { margin: 0; }
.hm-review blockquote p { font-size: 16px; line-height: 1.7; letter-spacing: -.015em; }
.hm-review figcaption {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--u-line);
    font-size: 12px;
    color: var(--u-ink-3);
}
.hm-stars { color: var(--u-ink); letter-spacing: .1em; font-size: 11px; }

.hm-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
.hm-stat { padding: 0 30px; border-left: 1px solid var(--u-line); }
.hm-stat:first-child { border-left: 0; padding-left: 0; }
.hm-stat-n {
    display: block;
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 830;
    letter-spacing: -.055em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.hm-stat-l {
    display: block;
    margin-top: 12px;
    font-family: var(--u-mono);
    font-size: 10.5px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--u-ink-3);
}

.hm-faq { border-top: 1px solid var(--u-line); }

.hm-cta { text-align: left; }
.hm-cta-t {
    font-size: clamp(2.2rem, 6vw, 4.6rem);
    font-weight: 820;
    letter-spacing: -.055em;
    line-height: 1;
    max-width: 18ch;
}
.hm-cta p { margin: 20px 0 30px; max-width: 46ch; font-size: 15px; color: var(--u-ink-3); line-height: 1.8; }

.hm-links {
    display: flex;
    align-items: center;
    gap: 20px 30px;
    flex-wrap: wrap;
    padding: 30px 0;
    border-top: 1px solid var(--u-line);
    margin-top: clamp(40px, 6vw, 80px);
}
.hm-links-t {
    font-family: var(--u-mono);
    font-size: 10px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}
.hm-links-row { display: flex; flex-wrap: wrap; gap: 10px 25px; }
.hm-links-row a {
    font-size: 12.5px;
    color: var(--u-ink-3);
    transition: color var(--u-dur) var(--u-ease);
}
.hm-links-row a:hover { color: var(--u-ink); text-decoration: underline; text-underline-offset: 4px; }

/* 17. motion
   ========================================================================== */
.u-reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .7s var(--u-ease), transform .7s var(--u-ease);
    transition-delay: var(--u-delay, 0s);
}
.u-reveal.is-in { opacity: 1; transform: none; }

#vm-particles {
    position: fixed;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    mix-blend-mode: multiply;
    opacity: .55;
}
[data-theme="dark"] #vm-particles { mix-blend-mode: screen; opacity: .5; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
    }
    .u-reveal { opacity: 1; transform: none; }
    .hm-unit { filter: none; }
    #vm-particles { display: none; }
}

/* 18. responsive
   ========================================================================== */
@media (max-width: 1024px) {
    .hm-work-grid { grid-template-columns: minmax(0, 1fr); gap: 50px; }
    .hm-side-sticky { position: static; }
    .hm-side { gap: 30px; }
    .hm-how { grid-template-columns: minmax(0, 1fr); gap: 46px; }
    .hm-pick { grid-template-columns: minmax(0, 1fr); gap: 25px; }
    .hm-dcard::before,
    .hm-dcard::after { display: none; }
    .hm-win-stack { margin: 0; }
    .hm-win-stack .hm-win--front { height: 400px; }
    .hm-win-stack .hm-win--mid,
    .hm-win-stack .hm-win--deep { display: none; }
    .hm-win-stack .hm-win-copy { display: none; }
    .hm-win-foot { flex-direction: column; gap: 15px; margin-right: 0; }
    .hm-win-foot > .u-device { position: static; }
    .u-split { grid-template-columns: minmax(0, 1fr); }
    .u-aside-sticky { position: static; }
    .u-live-grid { grid-template-columns: minmax(0, 1fr); }
    .hm-sec-head { grid-template-columns: minmax(0, 1fr); gap: 20px; }
    .u-footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
    .u-nav-desktop { display: none; }
    .u-nav-mobile { display: flex; }
    .u-header-inner { gap: 15px; min-height: 62px; }
    .hm-reviews { grid-template-columns: minmax(0, 1fr); gap: 30px; }
    .hm-stats { grid-template-columns: minmax(0, 1fr); }
    .hm-stat { padding: 25px 0; border-left: 0; border-top: 1px solid var(--u-line); }
    .hm-stat:first-child { border-top: 0; padding-top: 0; }
    .u-grid-2, .u-grid-3, .hm-grid2 { grid-template-columns: minmax(0, 1fr); }
    .u-stats { grid-template-columns: minmax(0, 1fr); }
    .u-stat { border-right: 0; border-bottom: 1px solid var(--u-line); }
    .u-stat:last-child { border-bottom: 0; }
    .hm-step { grid-template-columns: 42px minmax(0, 1fr); gap: 15px; }
    .u-footer-mark { font-size: clamp(2.6rem, 15vw, 5rem); }
}

@media (max-width: 620px) {
    .u-shell { padding: 0 20px; }
    .u-hero { padding-top: 45px; }
    .hm-title, .u-hero-title { font-size: clamp(2.3rem, 11vw, 3.2rem); }
    .u-card, .u-rule-card { padding: 20px; }
    .u-create-body { padding: 20px; }
    .u-create-actions { padding: 12px 20px; }
    .image-option-item, .u-opt-item { grid-template-columns: minmax(0, 1fr); gap: 15px; }
    .u-index-row { grid-template-columns: 30px minmax(0, 1fr); gap: 15px; }
    .u-index-meta { grid-column: 2; }
    .u-footer-grid { grid-template-columns: minmax(0, 1fr); gap: 30px; padding: 40px 0; }
    .u-footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
    .u-swatches { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
    .u-table th, .u-table td { padding: 12px 14px; }
    .u-tabs { gap: 20px; }
    .u-stat { padding: 20px; }
    .u-btn { min-height: 44px; padding: 0 18px; }
    .u-poll { grid-template-columns: 38px minmax(0, 1fr) auto; gap: 10px; }
    .u-mb-30 { margin-bottom: 20px; }
    .u-stats, .u-meter { min-width: 0; }
    .u-rule-actions { width: 100%; }
    .u-live-count { font-size: clamp(2.6rem, 14vw, 4rem); }
}

@media (max-width: 400px) {
    .u-shell { padding: 0 15px; }
    .u-btn { font-size: 12.5px; }
    .u-nav-right-mobile .u-btn { padding: 0 13px; }
}

/* 19. overlay / modal
   ========================================================================== */
.u-overlay {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
    background: rgba(11, 11, 11, .5);
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
}
.u-modal {
    width: 100%;
    max-width: 460px;
    margin: auto;
    padding: clamp(25px, 4vw, 40px);
    background: var(--u-paper);
    border: 1px solid var(--u-line);
    box-shadow: 0 40px 120px rgba(11, 11, 11, .28);
    animation: u-menu-in .2s var(--u-ease);
}
.u-modal--wide { max-width: 620px; }
.u-modal-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 20px;
}
.u-modal-title { font-size: 20px; font-weight: 750; letter-spacing: -.03em; }

/* 20. admin shell
   ========================================================================== */
.ad-shell {
    display: grid;
    grid-template-columns: 230px minmax(0, 1fr);
    min-height: 100vh;
}
.ad-side {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 40px;
    padding: 30px 25px;
    border-right: 1px solid var(--u-line);
}
.ad-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -.035em;
}
.ad-brand i {
    display: block;
    margin-top: 2px;
    font-family: var(--u-mono);
    font-style: normal;
    font-size: 10px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}
.ad-nav { display: grid; gap: 2px; }
.ad-navlink {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--u-line);
    font-size: 14px;
    font-weight: 600;
    color: var(--u-ink-3);
    transition: color var(--u-dur) var(--u-ease), padding-left var(--u-dur) var(--u-ease);
}
.ad-navlink i {
    font-family: var(--u-mono);
    font-style: normal;
    font-size: 10px;
    letter-spacing: .06em;
    color: var(--u-ink-4);
}
.ad-navlink:hover { color: var(--u-ink); padding-left: 6px; }
.ad-navlink.is-active { color: var(--u-ink); }
.ad-navlink.is-active span { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 5px; }
.ad-side-foot { margin-top: auto; display: grid; gap: 10px; font-size: 12px; }
.ad-main { min-width: 0; display: flex; flex-direction: column; }
.ad-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 30px clamp(20px, 3vw, 45px);
    border-bottom: 1px solid var(--u-line);
}
.ad-title { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 750; letter-spacing: -.04em; }
.ad-user {
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}
.ad-content { flex: 1; padding: clamp(25px, 4vw, 45px); }

@media (max-width: 860px) {
    .ad-shell { grid-template-columns: minmax(0, 1fr); }
    .ad-side {
        position: static;
        height: auto;
        border-right: 0;
        border-bottom: 1px solid var(--u-line);
        padding: 20px;
        gap: 25px;
    }
    .ad-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .ad-navlink { border-bottom: 0; padding: 8px 0; }
    .ad-side-foot { display: flex; gap: 20px; }
    .ad-top { padding: 20px; }
    .ad-content { padding: 20px; }
}

/* 21. studio preview internals
   ========================================================================== */
.u-prev--classic { --p-bg: #ffffff; --p-accent: #1f5b3b; --p-bar: #e5e2d8; }
.u-prev--card { --p-bg: #f1efe7; --p-accent: #357a45; --p-bar: #d3cfc2; }
.u-prev--colorful { --p-bg: #f2f5e9; --p-accent: #1e4d36; --p-bar: #7fb37a; }
.u-prev--dark { --p-bg: #16241b; --p-accent: #34d399; --p-bar: #3c463f; }
.u-prev--minimal { --p-bg: #ffffff; --p-accent: #9ba096; --p-bar: #d3cfc2; }

.u-prev--dark .u-prev-title { color: #f2f7f0; }
.u-prev--dark .u-prev-desc { color: rgba(255, 255, 255, .72); }
.u-prev--dark .u-prev-option {
    background: rgba(255, 255, 255, .04);
    border-color: rgba(255, 255, 255, .16);
    color: #eef4ea;
}
.u-prev--dark .u-prev-option > i { border-color: rgba(255, 255, 255, .45); }
.u-prev--dark .u-prev-foot { border-top-color: rgba(255, 255, 255, .14); }
.u-prev--dark .u-prev-note { color: rgba(255, 255, 255, .55); }

.u-prev-option { min-width: 0; }
.u-prev-option > i {
    display: block;
    width: 14px;
    height: 14px;
    flex: none;
    border: 1px solid #b4b9b0;
    border-radius: 50%;
}
.u-prev--multi .u-prev-option > i { border-radius: 2px; }
.u-prev-option > span:last-child { min-width: 0; line-height: 1.45; }
.u-prev-thumb {
    display: block;
    width: 38px;
    height: 28px;
    flex: none;
    background: var(--p-bar, #e5e2d8);
    border: 1px solid rgba(11, 11, 11, .12);
}
.u-prev.is-mobile { max-width: 360px; margin: 0 auto; }

.u-preview-toggle[aria-expanded="true"] {
    background: var(--u-ink);
    border-color: var(--u-ink);
    color: var(--u-paper);
}
.u-split#create-studio:not(.is-preview-open) { grid-template-columns: minmax(0, 1fr); }
.u-split#create-studio:not(.is-preview-open) #studio-preview { display: none; }

.u-choice-hint {
    margin: 10px 0 0;
    font-family: var(--u-mono);
    font-size: 11px;
    letter-spacing: .06em;
    color: var(--u-ink-3);
}
.u-choice-hint.is-over { color: var(--u-danger); }

.u-other-input {
    width: 100%;
    min-height: 42px;
    margin-top: 10px;
    padding: 9px 12px;
    background: var(--u-paper);
    border: 1px solid var(--u-line-2);
    border-radius: var(--u-r);
    font-size: 14px;
}
.u-other-input:focus { outline: none; border-color: var(--u-ink); }

.u-live-row.is-bump { animation: u-bump .7s var(--u-ease); }
@keyframes u-bump {
    0% { background: var(--u-paper-3); }
    100% { background: transparent; }
}

.u-mt-15 { margin-top: 15px; }
.hm-step-body { min-width: 0; }
.text-option-item { min-width: 0; }

.u-live-value b { font-weight: 700; }
.u-live-value em { font-style: normal; margin-left: 8px; color: var(--u-ink-3); }
.u-live-qr > span {
    font-family: var(--u-mono);
    font-size: 10.5px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--u-ink-4);
}
.u-sheet-head .u-h3 { font-size: 15px; line-height: 1.4; }
.u-sheet-head .u-h3:hover { text-decoration: underline; text-underline-offset: 3px; }

/* 22. dark mode
   ========================================================================== */
[data-theme="dark"] .u-select {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='none' stroke='%23a9a9a4' stroke-width='1.5' stroke-linecap='round' d='m3 4.5 3 3 3-3'/%3E%3C/svg%3E");
}

/* 投票模板作用域：模板自带配色，浅色模式下按各自的设计底色上色；
   黑夜模式下并入站点深色，模板内部的深色变体由各模板自己的 <style> 提供。 */
.tpl-scope { background: var(--p-bg, transparent); }
.tpl-scope--card { --p-bg: #f1efe7; }
.tpl-scope--colorful { --p-bg: #f2f5e9; }

[data-theme="dark"] .tpl-scope {
    background: var(--u-paper) !important;
    color-scheme: dark;
}

/* 深色底上的浮层需要抬升，否则弹窗 / 下拉菜单与页面融为一体 */
[data-theme="dark"] .u-overlay { background: rgba(0, 0, 0, .68); }
[data-theme="dark"] .u-modal {
    background: var(--u-paper-3);
    border-color: var(--u-line-2);
    box-shadow: 0 40px 120px rgba(0, 0, 0, .6);
}
[data-theme="dark"] .u-menu {
    background: var(--u-paper-3);
    border-color: var(--u-line-2);
    box-shadow: 0 24px 60px rgba(0, 0, 0, .55);
}
[data-theme="dark"] .u-menu-item:hover { background: var(--u-paper-2); }