/* common.css — 621 Quotation System · 定稿视觉 2026-09-24 v1 */
:root {
    --blue: #1e6fba;
    --teal: #3cb5b1;
    --grad: linear-gradient(90deg, #1e6fba 0%, #3cb5b1 100%);
    --bg: #f4f7fa;
    --line: #e3e8ef;
    --ink: #22303e;
    --ink-2: #5b6b7c;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* ===== 顶栏：蓝青渐变 90deg，sticky ===== */
.topbar {
    position: sticky;
    top: 0;
    z-index: 90;
    background: var(--grad);
    color: #fff;
    box-shadow: 0 1px 4px rgba(20, 60, 100, .18);
}
.topbar-in {
    position: relative;
    max-width: 1180px;
    margin: 0 auto;
    min-height: 64px;
    padding: 0 34px;
    display: flex;
    align-items: center;
    gap: 14px;
}
/* 三段式：LOGO 左 | 导航绝对居中 | 用户右；字重恒定防跳动 */
.topbar .nav {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 6px;
}
.topbar .nav a {
    color: rgba(255, 255, 255, .88);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    padding: 7px 13px;
    border-radius: 999px;
    white-space: nowrap;
    transition: background .15s;
}
.topbar .nav a:hover { background: rgba(255, 255, 255, .14); color: #fff; }
.topbar .nav a.on { background: rgba(255, 255, 255, .22); color: #fff; }
.topbar .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #fff;
    flex: 0 1 auto;
}
.topbar .brand img {
    width: auto;
    height: 34px;
    display: block;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .25));
}
.topbar .brand .brand-t {
    font-size: 16.5px;
    font-weight: 600;
    letter-spacing: .3px;
    white-space: nowrap;
}
.topbar .sp { flex: 1; }
.topbar .user-chip {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}
.topbar .user-chip .uname {
    background: rgba(255, 255, 255, .16);
    border: 1px solid rgba(255, 255, 255, .28);
    padding: 4px 14px;
    border-radius: 999px;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 600;
}
.topbar .logout-btn {
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .4);
    color: #fff;
    padding: 5px 14px;
    border-radius: 999px;
    cursor: pointer;
    font-size: 13.5px;
    transition: background .2s;
}
.topbar .logout-btn:hover { background: rgba(255, 255, 255, .3); }

/* ===== 主容器 ===== */
.main {
    max-width: 1180px;
    margin: 0 auto;
    padding: 28px 34px 10px;
}
.page-title {
    text-align: center;
    margin: 4px 0 22px;
}
.page-title h1 {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: .5px;
}
.page-title .sub {
    margin-top: 6px;
    font-size: 13.5px;
    color: var(--ink-2);
    letter-spacing: 2.5px;
    text-transform: uppercase;
}

/* ===== 卡片 ===== */
.card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(30, 70, 120, .06);
    padding: 24px 26px;
    margin-bottom: 22px;
}
.card > h2 {
    margin: 0 0 18px;
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    padding-left: 12px;
    border-left: 4px solid var(--teal);
    line-height: 1.35;
}

/* ===== 输入框（全站统一规范）===== */
input:not([type]),
input[type=text], input[type=password], input[type=number],
input[type=search], input[type=date], input[type=email],
select, textarea {
    width: 100%;
    padding: 10px 11px;
    border: 1px solid var(--line);
    border-radius: 9px;
    font-size: 16px;
    color: var(--ink);
    background: #fff;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(30, 111, 186, .12);
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 14px;
}
.form-col { flex: 1 1 200px; min-width: 0; }
.form-group { margin-bottom: 0; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ink-2);
}

/* ===== 按钮 ===== */
.btn-main {
    display: block;
    width: 100%;
    background: var(--grad);
    color: #fff;
    border: none;
    padding: 13px 24px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    margin-top: 8px;
    transition: filter .2s, transform .05s;
}
.btn-main:hover { filter: brightness(1.06); }
.btn-main:active { transform: translateY(1px); }

/* ===== 报价结果 ===== */
.result-hero {
    background: var(--grad);
    border-radius: 12px;
    color: #fff;
    text-align: center;
    padding: 34px 20px 30px;
    margin-top: 6px;
}
.result-hero .r-label {
    font-size: 15px;
    letter-spacing: 3px;
    text-transform: uppercase;
    opacity: .92;
}
.result-hero .r-value {
    font-size: 46px;
    font-weight: 700;
    line-height: 1.25;
    margin: 6px 0 2px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, .15);
}
.result-hero .r-unit {
    font-size: 13px;
    letter-spacing: 2px;
    opacity: .85;
}

/* ===== 错误提示 ===== */
.error {
    background: #fdecec;
    border: 1px solid #f5c6c6;
    color: #b03a3a;
    padding: 10px 14px;
    border-radius: 9px;
    margin-top: 12px;
    font-size: 14.5px;
}

/* ===== 管理链接 ===== */
.nav-links {
    text-align: center;
    padding: 4px 0 10px;
    font-size: 14px;
    color: var(--ink-2);
}
.nav-links a {
    color: var(--blue);
    text-decoration: none;
    margin: 0 6px;
    font-weight: 600;
}
.nav-links a:hover { text-decoration: underline; }

/* ===== 页脚 ===== */
.footer {
    text-align: center;
    color: #93a1b0;
    font-size: 12.5px;
    padding: 18px 16px 26px;
    line-height: 1.9;
}
.footer b { color: #7b8a99; font-weight: 600; }

/* ===== 手机端 ≤640px ===== */
@media (max-width: 900px) {
    /* 手机/平板：导航固定底部（与六二一系统群范式一致），顶栏只留 LOGO + 用户 */
    .topbar-in { min-height: 52px; padding: 0 14px; }
    .topbar .nav {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        transform: none;
        width: 100%;
        justify-content: space-around;
        gap: 0;
        overflow-x: visible;
        padding: 6px 6px calc(7px + env(safe-area-inset-bottom, 0px));
        background: var(--grad);
        box-shadow: 0 -2px 12px rgba(20, 60, 100, .22);
        z-index: 96;
    }
    .topbar .nav a {
        flex: 1 1 0;
        min-width: 0;
        text-align: center;
        font-size: 13px;
        padding: 9px 2px;
        border-radius: 9px;
        margin: 0 2px;
    }
    body:has(.topbar) { padding-bottom: 64px !important; }
}
@media (max-width: 640px) {
    .topbar-in { min-height: 52px; padding: 0 14px; gap: 10px; }
    .topbar .brand img { height: 30px; }
    .topbar .brand .brand-t { display: none; }
    .topbar .user-chip { gap: 8px; font-size: 13px; }
    .topbar .user-chip .uname { max-width: 150px; padding: 3px 10px; }
    .topbar .logout-btn { padding: 4px 10px; font-size: 12.5px; white-space: nowrap; }
    .main { padding: 18px 14px 8px; }
    .page-title h1 { font-size: 21px; }
    .card { padding: 18px 16px; border-radius: 10px; }
    .result-hero { padding: 26px 14px 22px; }
    .result-hero .r-value { font-size: 38px; }
}