/* ======================================================================
 *  异地恋见面成本与频率规划 /tool/long-distance-love-calc
 *  风格：日落航班 —— 粉紫/暖橙渐变 + 星点夜空结果卡
 *  深色模式随站点 [data-theme="dark"]，本页变量作用域 .ldl-page
 * ====================================================================== */

.ldl-page {
    --ldl-violet: #a855f7;
    --ldl-rose: #fb7185;
    --ldl-bg: #fdf4ff;
    --ldl-card: #ffffff;
    --ldl-soft: #faf2ff;
    --ldl-line: #eed8f6;
    --ldl-text: #341b3d;
    --ldl-muted: #97749f;
    --ldl-shadow: 0 12px 32px -16px rgba(168, 85, 247, .30);
    --sky-1: #2b1b45;
    --sky-2: #7c3aed;
    color: var(--ldl-text);
    padding-bottom: 70px;
    background:
        radial-gradient(880px 400px at 10% -8%, rgba(251, 113, 133, .13), transparent 60%),
        radial-gradient(680px 340px at 92% 0%, rgba(192, 132, 252, .13), transparent 55%);
}
:root[data-theme="dark"] .ldl-page {
    --ldl-bg: #190f22;
    --ldl-card: #221530;
    --ldl-soft: #2b1c3c;
    --ldl-line: #40285a;
    --ldl-text: #f3e9f8;
    --ldl-muted: #b294c0;
    --ldl-shadow: 0 14px 34px -18px rgba(0, 0, 0, .7);
}

/* ---------- 面包屑 ---------- */
.ldl-crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--ldl-muted);
    padding: 18px 0 0;
}
.ldl-crumb a { color: var(--ldl-muted); text-decoration: none; }
.ldl-crumb a:hover { color: var(--ldl-violet); }
.ldl-crumb b { color: var(--ldl-text); font-weight: 600; }

/* ---------- Hero ---------- */
.ldl-hero { text-align: center; padding: 22px 0 26px; }
.ldl-hero-ic {
    display: inline-grid;
    place-items: center;
    width: 62px;
    height: 62px;
    font-size: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ldl-rose), var(--ldl-violet));
    box-shadow: var(--ldl-shadow);
    margin-bottom: 12px;
}
.ldl-hero h1 {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 900;
    letter-spacing: -.02em;
    margin: 0 0 10px;
}
.ldl-hero p {
    max-width: 600px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 1.8;
    color: var(--ldl-muted);
}
.ldl-hero em { font-style: normal; font-weight: 800; color: var(--ldl-violet); }

/* ---------- 布局 ---------- */
.ldl-layout {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 22px;
    align-items: start;
}
.ldl-form-col { display: flex; flex-direction: column; gap: 16px; }

/* ---------- 表单 ---------- */
.ldl-card {
    background: var(--ldl-card);
    border: 1px solid var(--ldl-line);
    border-radius: 18px;
    padding: 20px 22px;
    box-shadow: var(--ldl-shadow);
}
.ldl-card-t {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 800;
    margin: 0 0 16px;
}
.ldl-card-t i {
    font-style: normal;
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    font-size: 13px;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(135deg, var(--ldl-rose), var(--ldl-violet));
}
.ldl-frow { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ldl-field { display: block; margin-bottom: 12px; }
.ldl-field > span { display: block; font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.ldl-field > span small { font-weight: 400; color: var(--ldl-muted); }
.ldl-field input, .ldl-field select {
    width: 100%;
    border: 1px solid var(--ldl-line);
    border-radius: 10px;
    background: var(--ldl-soft);
    color: var(--ldl-text);
    font: inherit;
    font-size: 14px;
    padding: 9px 12px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}
.ldl-field input:focus, .ldl-field select:focus {
    border-color: var(--ldl-violet);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ldl-violet) 18%, transparent);
}
.ldl-seg {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 14px;
}
.ldl-seg-btn {
    font: inherit;
    font-size: 13.5px;
    font-weight: 700;
    color: var(--ldl-muted);
    background: var(--ldl-soft);
    border: 1.5px solid var(--ldl-line);
    border-radius: 999px;
    padding: 8px 16px;
    cursor: pointer;
    transition: all .16s;
}
.ldl-seg-btn:hover { border-color: var(--ldl-violet); color: var(--ldl-violet); }
.ldl-seg-btn.is-on {
    color: #fff;
    background: linear-gradient(135deg, var(--ldl-rose), var(--ldl-violet));
    border-color: transparent;
    box-shadow: 0 5px 14px -5px var(--ldl-violet);
}

.ldl-btn {
    width: 100%;
    font: inherit;
    font-size: 15.5px;
    font-weight: 800;
    color: #fff;
    border: 0;
    border-radius: 999px;
    padding: 14px 20px;
    cursor: pointer;
    background: linear-gradient(135deg, var(--ldl-rose), var(--ldl-violet));
    box-shadow: 0 10px 24px -8px color-mix(in srgb, var(--ldl-violet) 70%, transparent);
    transition: transform .15s;
}
.ldl-btn:hover { transform: translateY(-2px); }

/* ---------- 结果：日落夜空卡 ---------- */
.ldl-result-col { display: flex; flex-direction: column; gap: 16px; }
.ldl-sky {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    padding: 20px 22px;
    color: #fff;
    background:
        radial-gradient(360px 200px at 82% 0%, rgba(251, 191, 36, .25), transparent 65%),
        linear-gradient(165deg, var(--sky-2), var(--sky-1) 75%);
    box-shadow: var(--ldl-shadow);
}
.ldl-sky::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(1.6px 1.6px at 12% 22%, rgba(255,255,255,.8), transparent),
        radial-gradient(1.4px 1.4px at 30% 12%, rgba(255,255,255,.6), transparent),
        radial-gradient(1.8px 1.8px at 55% 28%, rgba(255,255,255,.75), transparent),
        radial-gradient(1.2px 1.2px at 72% 10%, rgba(255,255,255,.55), transparent),
        radial-gradient(1.6px 1.6px at 88% 20%, rgba(255,255,255,.7), transparent),
        radial-gradient(1.2px 1.2px at 45% 8%, rgba(255,255,255,.5), transparent);
    pointer-events: none;
}
.ldl-sky > * { position: relative; z-index: 1; }
.ldl-sky-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.ldl-sky-head b { font-size: 20px; font-weight: 900; letter-spacing: .02em; }
.ldl-sky-head span {
    font-size: 12.5px;
    font-weight: 700;
    background: rgba(255, 255, 255, .16);
    border: 1px solid rgba(255, 255, 255, .28);
    border-radius: 999px;
    padding: 5px 13px;
}

.ldl-gauges {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 14px;
}
.ldl-gauge {
    background: rgba(255, 255, 255, .10);
    border: 1px solid rgba(255, 255, 255, .20);
    border-radius: 14px;
    padding: 13px 10px;
    text-align: center;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.ldl-gauge.is-main {
    background: linear-gradient(160deg, rgba(251, 113, 133, .30), rgba(168, 85, 247, .25));
    border-color: rgba(255, 255, 255, .35);
}
.ldl-gauge span { display: block; font-size: 11.5px; opacity: .85; margin-bottom: 5px; }
.ldl-gauge b { display: block; font-size: 21px; font-weight: 900; font-variant-numeric: tabular-nums; line-height: 1.2; }
.ldl-gauge i { display: block; font-style: normal; font-size: 10.5px; opacity: .75; margin-top: 4px; }

.ldl-break { display: grid; gap: 7px; margin-bottom: 4px; }
.ldl-break-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    background: rgba(255, 255, 255, .08);
    border-radius: 10px;
    padding: 9px 13px;
}
.ldl-break-row span { opacity: .88; }
.ldl-break-row b { font-variant-numeric: tabular-nums; font-weight: 800; }

.ldl-advice {
    margin-top: 12px;
    font-size: 12.5px;
    line-height: 1.7;
    background: rgba(255, 255, 255, .08);
    border-radius: 10px;
    padding: 9px 13px;
}

/* ---------- 节奏建议 ---------- */
.ldl-tipcard {
    background: var(--ldl-card);
    border: 1px solid var(--ldl-line);
    border-radius: 18px;
    padding: 18px 20px;
    box-shadow: var(--ldl-shadow);
}
.ldl-tipcard h2 { font-size: 16px; font-weight: 800; margin: 0 0 12px; }
.ldl-adv {
    margin: 0 0 9px;
    font-size: 13.5px;
    line-height: 1.85;
    color: var(--ldl-muted);
    background: var(--ldl-soft);
    border: 1px solid var(--ldl-line);
    border-radius: 12px;
    padding: 10px 14px;
}
.ldl-adv:last-child { margin-bottom: 0; }
.ldl-adv b { color: var(--ldl-text); }

/* ---------- 底部：口径说明表 ---------- */
.neo-note-table { width: 100%; border-collapse: collapse; }
.neo-note-table th,
.neo-note-table td {
    text-align: left;
    padding: 11px 14px;
    border-bottom: 1px solid color-mix(in srgb, var(--ldl-line) 70%, transparent);
    font-size: 13.5px;
    line-height: 1.75;
    vertical-align: top;
}
.neo-note-table th { width: 92px; font-weight: 800; color: var(--ldl-violet); white-space: nowrap; }
.neo-note-table td { color: var(--ldl-text); }
.neo-note-table td b { color: var(--ldl-violet); }
.neo-usage { margin: 0; padding-left: 22px; display: grid; gap: 6px; }
.neo-usage li { font-size: 14px; line-height: 1.9; color: var(--ldl-muted); }
.neo-usage li b { color: var(--ldl-text); }

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
    .ldl-layout { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
    .ldl-frow { grid-template-columns: 1fr; }
    .ldl-gauges { grid-template-columns: 1fr; }
}