/* ==========================================================
   利器 LQTOOL · 主样式
   墨黑 / 纸白 / 朱砂红
   ========================================================== */

:root {
    --paper: #f7f5f0;
    --paper-2: #f1eee6;
    --card: #ffffff;
    --ink: #14161a;
    --ink-soft: #2b2f36;
    --muted: #6f6a60;
    --line: #e6e1d6;
    --line-strong: #d8d2c4;
    --red: #c8392f;
    --red-deep: #a92b23;
    --red-soft: #fbeeec;
    --green: #1f7a4d;
    --amber: #b7791f;
    --blue: #2563b8;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 2px rgba(20, 22, 26, .05);
    --shadow: 0 1px 2px rgba(20, 22, 26, .04), 0 14px 40px rgba(20, 22, 26, .07);
    --shadow-lg: 0 24px 70px rgba(20, 22, 26, .12);
    --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }

.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---------------- 顶部 ---------------- */

.site-head {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(247, 245, 240, .82);
    backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid var(--line);
}

.head-inner {
    height: 68px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand-mark { border-radius: 10px; box-shadow: 0 4px 14px rgba(200, 57, 47, .28); }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-text b { font-size: 19px; letter-spacing: 2px; font-family: var(--serif); }
.brand-text i { font-style: normal; font-size: 10px; letter-spacing: 3px; color: var(--muted); }

.nav { display: flex; align-items: center; gap: 4px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.nav::-webkit-scrollbar { display: none; }
.nav-link {
    padding: 8px 14px;
    border-radius: 8px;
    color: var(--muted);
    font-size: 14.5px;
    white-space: nowrap;
    transition: color .15s, background .15s;
}
.nav-link:hover { color: var(--ink); background: rgba(20, 22, 26, .04); }
.nav-link.is-active { color: var(--ink); font-weight: 600; }
.nav-link.is-active::after {
    content: "";
    display: block;
    height: 2px;
    margin-top: 3px;
    border-radius: 2px;
    background: var(--red);
}

.head-right { display: flex; align-items: center; gap: 10px; flex: none; }

.quota-pill {
    font-size: 12.5px;
    color: var(--muted);
    background: var(--paper-2);
    border: 1px solid var(--line);
    padding: 5px 10px;
    border-radius: 999px;
}

.user-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13.5px;
    padding: 7px 12px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--line);
    max-width: 150px;
}
.user-chip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------------- 按钮 ---------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    height: 42px;
    padding: 0 20px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    background: var(--ink);
    color: #fff;
    font-size: 14.5px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .12s, background .15s, box-shadow .15s, border-color .15s;
    white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }

.btn-primary { background: var(--red); box-shadow: 0 6px 18px rgba(200, 57, 47, .24); }
.btn-primary:hover { background: var(--red-deep); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { background: #fff; border-color: var(--ink); }
.btn-soft { background: var(--paper-2); color: var(--ink); border-color: var(--line); }
.btn-sm { height: 34px; padding: 0 14px; font-size: 13px; border-radius: 8px; }
.btn-lg { height: 54px; padding: 0 30px; font-size: 16px; border-radius: 12px; }
.btn-block { width: 100%; }
.btn-danger { background: #b03030; }
.btn-danger:hover { background: #922626; }

/* ---------------- 首屏 ---------------- */

.hero {
    position: relative;
    padding: 64px 0 26px;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: -180px 0 auto 0;
    height: 560px;
    background:
        radial-gradient(760px 340px at 18% 22%, rgba(200, 57, 47, .10), transparent 62%),
        radial-gradient(620px 300px at 88% 0%, rgba(43, 47, 54, .07), transparent 60%);
    pointer-events: none;
}
.hero-inner { position: relative; }

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--red);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--red); border-radius: 2px; }

.hero h1 {
    font-family: var(--serif);
    font-size: clamp(30px, 4.4vw, 50px);
    line-height: 1.28;
    letter-spacing: 1px;
    margin: 0 0 16px;
    font-weight: 700;
}
.hero h1 em { font-style: normal; color: var(--red); }
.hero-sub {
    color: var(--muted);
    font-size: 16px;
    margin: 0 0 30px;
    max-width: 640px;
}
.hero-sub b { color: var(--ink); font-weight: 600; }

/* 查询卡 */
.search-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow);
    padding: 18px;
    max-width: 860px;
}

.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.tab {
    border: 0;
    background: transparent;
    color: var(--muted);
    padding: 8px 15px;
    border-radius: 9px;
    font-size: 14px;
    cursor: pointer;
    transition: background .15s, color .15s;
}
.tab:hover { background: var(--paper-2); color: var(--ink); }
.tab.is-active { background: var(--ink); color: #fff; font-weight: 600; }

.search-row { display: flex; gap: 10px; }
.search-input {
    flex: 1;
    height: 56px;
    border: 1px solid var(--line-strong);
    border-radius: 12px;
    padding: 0 18px;
    font-size: 16px;
    background: var(--paper);
    outline: none;
    transition: border-color .15s, box-shadow .15s, background .15s;
    min-width: 0;
}
.search-input::placeholder { color: #a8a29a; }
.search-input:focus { border-color: var(--red); background: #fff; box-shadow: 0 0 0 4px rgba(200, 57, 47, .10); }
.search-row .btn { height: 56px; padding: 0 30px; font-size: 16px; border-radius: 12px; }

.search-hint {
    margin-top: 12px;
    font-size: 12.5px;
    color: var(--muted);
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    align-items: center;
}
.search-hint span { display: inline-flex; align-items: center; gap: 5px; }
.dot { width: 5px; height: 5px; border-radius: 50%; background: var(--green); }

/* ---------------- 结果 ---------------- */

.result-slot { margin: 26px 0 0; }

.result-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 26px 28px;
    animation: rise .28s ease both;
}
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.result-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}
.result-title { display: flex; align-items: center; gap: 12px; font-weight: 600; font-size: 15px; }
.result-title .domain { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 15px; color: var(--ink-soft); }
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    padding: 3px 9px;
    border-radius: 999px;
    background: var(--paper-2);
    color: var(--muted);
    border: 1px solid var(--line);
}
.badge-ok { background: #edf7f1; color: var(--green); border-color: #cfe9db; }
.badge-warn { background: #fdf6e9; color: var(--amber); border-color: #f2e3c4; }
.badge-err { background: var(--red-soft); color: var(--red); border-color: #f2d3cf; }

.big-num {
    font-family: var(--serif);
    font-size: clamp(40px, 6vw, 62px);
    line-height: 1.1;
    letter-spacing: 1px;
    margin: 6px 0 4px;
}
.big-num small { font-size: 15px; color: var(--muted); font-family: var(--sans); letter-spacing: 0; margin-left: 6px; }
.kv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 18px;
}
.kv { background: #fff; padding: 14px 16px; min-width: 0; }
.kv dt { font-size: 12px; color: var(--muted); margin: 0 0 4px; letter-spacing: .5px; }
.kv dd { margin: 0; font-size: 14.5px; word-break: break-all; }
.kv dd.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13.5px; }

.sec-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--muted);
    margin: 26px 0 12px;
    font-weight: 700;
}
.sec-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
    font-size: 12.5px;
    padding: 3px 10px;
    border-radius: 6px;
    background: var(--paper-2);
    color: var(--ink-soft);
    border: 1px solid var(--line);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.empty-note {
    padding: 18px;
    border: 1px dashed var(--line-strong);
    border-radius: 12px;
    color: var(--muted);
    font-size: 13.5px;
    text-align: center;
}

/* ---------------- 区块 ---------------- */

.section { padding: 54px 0; }
.section-head { margin-bottom: 26px; display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.section-head h2 {
    font-family: var(--serif);
    font-size: clamp(23px, 3vw, 30px);
    margin: 0 0 4px;
    letter-spacing: .6px;
}
.section-head p { margin: 0; color: var(--muted); font-size: 14.5px; }
.section-head .more { font-size: 14px; color: var(--red); display: inline-flex; align-items: center; gap: 6px; }

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
    gap: 14px;
}
.tool-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px;
    transition: transform .16s, box-shadow .16s, border-color .16s;
    overflow: hidden;
}
.tool-card::after {
    content: "";
    position: absolute;
    right: -30px;
    top: -30px;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: var(--paper-2);
    opacity: .55;
    transition: transform .2s;
}
.tool-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.tool-card:hover::after { transform: scale(1.25); }
.tool-card > * { position: relative; z-index: 1; }

.tool-ico {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 11px;
    background: #f6f3ec;
    border: 1px solid var(--line);
    color: var(--c);
    background: color-mix(in srgb, var(--c) 10%, #fff);
    border-color: color-mix(in srgb, var(--c) 22%, #fff);
    font-family: var(--serif);
    font-weight: 700;
    font-size: 19px;
    line-height: 1;
}
.tool-ico-sm { font-size: 12px; letter-spacing: .5px; font-family: var(--sans); }

.tool-card h3 { margin: 2px 0 0; font-size: 15.5px; font-weight: 600; }
.tool-card p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.65; }
.tool-card .go {
    margin-top: auto;
    font-size: 12.5px;
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding-top: 6px;
}
.tool-card:hover .go { color: var(--red); }

/* 特性 */
.feature-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 26px;
    border-top: 1px solid var(--line);
    padding-top: 34px;
}
.feature { display: flex; gap: 14px; }
.feature .fi {
    flex: none;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: #fff;
    border: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--red);
}
.feature h4 { margin: 0 0 3px; font-size: 14.5px; }
.feature p { margin: 0; font-size: 13px; color: var(--muted); }

/* ---------------- 工具页 ---------------- */

.page-head { padding: 40px 0 6px; }
.crumb { font-size: 12.5px; color: var(--muted); margin-bottom: 14px; display: flex; gap: 8px; align-items: center; }
.crumb a:hover { color: var(--ink); }
.page-head h1 { font-family: var(--serif); font-size: clamp(26px, 3.6vw, 38px); margin: 0 0 8px; letter-spacing: .8px; }
.page-head p { margin: 0; color: var(--muted); max-width: 720px; }

.tool-panel {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
    padding: 22px;
    margin-top: 24px;
}
.form-row { display: flex; gap: 10px; }
.form-row .search-input { height: 52px; }
.form-row .btn { height: 52px; }

.related { margin-top: 34px; }
.related h3 { font-size: 13px; letter-spacing: 2px; color: var(--muted); margin: 0 0 12px; }
.related-list { display: flex; flex-wrap: wrap; gap: 8px; }
.related-list a {
    font-size: 13px;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink-soft);
}
.related-list a:hover { border-color: var(--ink); }

/* ---------------- 表单 / 登录 ---------------- */

.auth-wrap { min-height: calc(100vh - 68px); display: flex; align-items: center; justify-content: center; padding: 48px 20px; }
.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 34px 32px 28px;
}
.auth-card h1 { font-family: var(--serif); font-size: 24px; margin: 14px 0 4px; letter-spacing: .5px; }
.auth-card .sub { color: var(--muted); font-size: 13.5px; margin: 0 0 22px; }

.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--ink-soft); margin-bottom: 6px; font-weight: 600; }
.input {
    width: 100%;
    height: 48px;
    padding: 0 14px;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    background: var(--paper);
    outline: none;
    transition: border-color .15s, box-shadow .15s, background .15s;
}
.input:focus { border-color: var(--red); background: #fff; box-shadow: 0 0 0 4px rgba(200, 57, 47, .09); }
textarea.input { height: auto; padding: 12px 14px; resize: vertical; line-height: 1.7; }
.field .hint { font-size: 12px; color: var(--muted); margin-top: 6px; }

.auth-alt { margin-top: 18px; font-size: 13px; color: var(--muted); text-align: center; }
.auth-alt a { color: var(--red); }
.auth-alt a:hover { text-decoration: underline; }

.form-msg { margin: 0 0 16px; padding: 10px 14px; border-radius: 10px; font-size: 13px; }
.form-msg.err { background: var(--red-soft); color: var(--red); border: 1px solid #f0cfcb; }
.form-msg.ok { background: #edf7f1; color: var(--green); border: 1px solid #cfe9db; }

.code-box {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 24px;
    letter-spacing: 4px;
    text-align: center;
    padding: 16px;
    background: var(--paper-2);
    border: 1px dashed var(--line-strong);
    border-radius: 12px;
    margin: 12px 0;
    user-select: all;
}

/* ---------------- 通用 ---------------- */

.flash { margin: 18px 0; padding: 13px 18px; border-radius: 12px; font-size: 14px; }
.flash-ok { background: #edf7f1; color: var(--green); border: 1px solid #cfe9db; }
.flash-err { background: var(--red-soft); color: var(--red); border: 1px solid #f0cfcb; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
table.data { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.data th, table.data td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.data th { background: var(--paper-2); font-weight: 600; font-size: 12.5px; color: var(--muted); letter-spacing: .4px; }
table.data tr:last-child td { border-bottom: 0; }
table.data tr:hover td { background: #fbfaf7; }
table.data td.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, .4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
    position: fixed;
    left: 50%;
    bottom: 34px;
    transform: translate(-50%, 20px);
    background: var(--ink);
    color: #fff;
    font-size: 13.5px;
    padding: 11px 20px;
    border-radius: 10px;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
    z-index: 200;
    max-width: 86vw;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------------- 页脚 ---------------- */

.site-foot { margin-top: 70px; border-top: 1px solid var(--line); background: #fff; }
.foot-inner { display: flex; justify-content: space-between; gap: 30px; padding: 34px 0 18px; flex-wrap: wrap; }
.foot-brand { display: flex; gap: 12px; align-items: center; }
.foot-brand b { font-family: var(--serif); letter-spacing: 1px; }
.foot-brand p { margin: 2px 0 0; font-size: 12.5px; color: var(--muted); }
.foot-links { display: flex; gap: 18px; flex-wrap: wrap; font-size: 13px; color: var(--muted); align-items: center; }
.foot-links a:hover { color: var(--red); }
.foot-bottom {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    padding: 14px 0 26px;
    border-top: 1px solid var(--line);
    font-size: 12.5px;
    color: var(--muted);
}
.foot-bottom a:hover { color: var(--red); }

/* ---------------- 后台 ---------------- */

.admin-body { background: #f4f2ec; }
.admin-shell { display: flex; min-height: 100vh; }
.admin-side {
    width: 232px;
    flex: none;
    background: var(--ink);
    color: rgba(255, 255, 255, .72);
    padding: 22px 14px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.admin-side .brand { color: #fff; margin: 0 8px 22px; }
.admin-side .brand-text i { color: rgba(255, 255, 255, .45); }
.admin-nav { display: flex; flex-direction: column; gap: 3px; }
.admin-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 9px;
    font-size: 14px;
    color: rgba(255, 255, 255, .72);
}
.admin-nav a:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.admin-nav a.is-active { background: var(--red); color: #fff; }
.admin-nav .sep { height: 1px; background: rgba(255, 255, 255, .1); margin: 12px 4px; }
.admin-main { flex: 1; min-width: 0; padding: 26px 30px 50px; }
.admin-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.admin-top h1 { font-family: var(--serif); font-size: 24px; margin: 0; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 18px 20px;
}
.stat span { font-size: 12.5px; color: var(--muted); }
.stat b { display: block; font-family: var(--serif); font-size: 30px; line-height: 1.3; margin-top: 2px; }

.panel {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 22px;
    margin-bottom: 20px;
}
.panel h2 { font-size: 15px; margin: 0 0 14px; letter-spacing: .5px; }
.panel .desc { font-size: 13px; color: var(--muted); margin: -8px 0 14px; }

.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.row-actions .btn { height: 30px; padding: 0 10px; font-size: 12px; border-radius: 7px; }

.inline-form { display: inline; }

.switch { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; }

/* ---------------- 响应式 ---------------- */

@media (max-width: 860px) {
    .head-inner { height: 60px; gap: 14px; }
    .brand-text i { display: none; }
    .nav-link { padding: 7px 10px; font-size: 13.5px; }
    .quota-pill { display: none; }
    .hero { padding: 40px 0 18px; }
    .search-row { flex-direction: column; }
    .search-row .btn { width: 100%; }
    .search-card { padding: 14px; border-radius: 16px; }
    .wrap { padding: 0 16px; }
    .admin-shell { flex-direction: column; }
    .admin-side { width: 100%; height: auto; position: static; padding: 14px; }
    .admin-nav { flex-direction: row; flex-wrap: wrap; }
    .admin-main { padding: 18px 16px 40px; }
    .result-card { padding: 20px 18px; }
}

@media (max-width: 520px) {
    .head-right .btn-ghost { display: none; }
    .hero h1 { font-size: 28px; }
    .tool-grid { grid-template-columns: 1fr; }
}