/* ============================================================
   微信登录示例 · 样式
   移动端优先，PC 上居中显示卡片
   ============================================================ */

:root {
    --wx-green: #07c160;
    --wx-green-dark: #06ad56;
    --text: #16181c;
    --text-sub: #6b7280;
    --text-faint: #9ca3af;
    --bg: #f4f6f8;
    --card: #ffffff;
    --border: #e9edf2;
    --warn-bg: #fff8e6;
    --warn-border: #ffe1a6;
    --warn-text: #8a5a00;
    --danger-bg: #fff1f1;
    --danger-border: #ffcdcd;
    --danger-text: #b42318;
    --radius-lg: 18px;
    --radius-md: 12px;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

[hidden] {
    display: none !important;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    min-height: 100dvh;
    background:
            radial-gradient(120% 60% at 50% -10%, rgba(7, 193, 96, .10) 0%, rgba(7, 193, 96, 0) 62%),
            var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.wrap {
    max-width: 480px;
    margin: 0 auto;
    padding: max(28px, env(safe-area-inset-top)) 20px calc(28px + env(safe-area-inset-bottom));
}

/* ---------------- 头部 ---------------- */
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-left: 4px;
}

.brand-mark {
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    display: grid;
    place-items: center;
    border-radius: 13px;
    background: linear-gradient(145deg, #10d16c, #06ac58);
    color: #fff;
    box-shadow: 0 6px 16px rgba(7, 193, 96, .26);
}

.brand-mark svg {
    width: 26px;
    height: 26px;
}

.brand-text h1 {
    margin: 0;
    font-size: 19px;
    font-weight: 600;
    letter-spacing: .2px;
}

.brand-text p {
    margin: 2px 0 0;
    font-size: 12.5px;
    color: var(--text-sub);
}

/* ---------------- 卡片 ---------------- */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px 20px;
    box-shadow: 0 8px 28px rgba(22, 24, 28, .05);
}

.lead {
    margin: 0 0 18px;
    font-size: 14px;
    color: var(--text-sub);
}

/* ---------------- 按钮 ---------------- */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    height: 48px;
    padding: 0 18px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-size: 15.5px;
    font-weight: 500;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: transform .15s ease, background-color .15s ease, box-shadow .15s ease;
    -webkit-appearance: none;
}

.btn:active {
    transform: scale(.985);
}

.btn[disabled] {
    opacity: .6;
    pointer-events: none;
}

.btn-primary {
    background: var(--wx-green);
    color: #fff;
    box-shadow: 0 8px 18px rgba(7, 193, 96, .24);
}

.btn-primary:hover {
    background: var(--wx-green-dark);
}

.btn-ghost {
    background: #f4f6f8;
    color: var(--text);
    border-color: var(--border);
}

.btn-ghost:hover {
    background: #eef1f5;
}

/* ---------------- 引导步骤 ---------------- */
.steps {
    margin: 18px 0 0;
    padding-left: 20px;
    color: var(--text-sub);
    font-size: 13px;
    line-height: 1.85;
}

.steps li::marker {
    color: var(--wx-green);
    font-weight: 600;
}

/* ---------------- 提示 ---------------- */
.hint {
    margin: 14px 0 0;
    font-size: 12.5px;
    line-height: 1.65;
    color: var(--text-faint);
    text-align: center;
}

.hint.warn {
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--warn-bg);
    border: 1px solid var(--warn-border);
    color: var(--warn-text);
    text-align: left;
}

.alert {
    margin-bottom: 14px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    color: var(--danger-text);
    font-size: 13.5px;
    word-break: break-word;
}

.alert-warn {
    background: var(--warn-bg);
    border-color: var(--warn-border);
    color: var(--warn-text);
}

.alert strong {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

.alert ul {
    margin: 0;
    padding-left: 18px;
}

.alert li + li {
    margin-top: 6px;
}

/* ---------------- 模拟登录分隔 ---------------- */
.mock {
    margin-top: 22px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.mock-line {
    height: 1px;
    width: 100%;
    background: linear-gradient(90deg, transparent, var(--border) 20%, var(--border) 80%, transparent);
}

/* ---------------- 用户信息 ---------------- */
.user-head {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
}

.avatar-wrap {
    position: relative;
    width: 56px;
    height: 56px;
    flex: 0 0 56px;
}

.avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    background: #eef1f5;
}

.avatar-fallback {
    display: grid;
    place-items: center;
    background: linear-gradient(145deg, #10d16c, #06ac58);
    color: #fff;
    font-size: 22px;
    font-weight: 600;
    user-select: none;
}

.user-meta {
    min-width: 0;
    flex: 1;
}

.nick {
    font-size: 17px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chan {
    margin-top: 2px;
    font-size: 12.5px;
    color: var(--text-sub);
}

.badge {
    flex: 0 0 auto;
    padding: 3px 8px;
    border-radius: 999px;
    background: var(--warn-bg);
    border: 1px solid var(--warn-border);
    color: var(--warn-text);
    font-size: 11.5px;
    line-height: 1.4;
}

.kv {
    margin: 18px 0 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.kv > div {
    display: flex;
    gap: 14px;
    align-items: baseline;
}

.kv dt {
    flex: 0 0 72px;
    font-size: 12.5px;
    color: var(--text-faint);
}

.kv dd {
    margin: 0;
    flex: 1;
    min-width: 0;
    font-size: 13.5px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    color: var(--text);
    word-break: break-all;
}

/* ---------------- 页脚 ---------------- */
.foot {
    margin-top: 18px;
    text-align: center;
    font-size: 11.5px;
    color: var(--text-faint);
}

/* PC 上给一点呼吸感 */
@media (min-width: 560px) {
    .wrap {
        padding-top: 56px;
    }

    .card {
        padding: 26px 24px;
    }
}