:root {
    --message-primary: #6366f1;
    --message-primary-2: #a855f7;
    --message-text: #1f2937;
    --message-text-2: #6b7280;
    --message-text-3: #9ca3af;
    --message-border: #e6e8f0;
}

/* ---------- 页面容器 ---------- */
.message-page {
    max-width: 1300px;
    margin: 0 auto;
    padding: 44px 20px 72px;
}

/* ---------- 头部 ---------- */
.message-header { text-align: center; margin-bottom: 26px; }

.message-header h1 {
    margin: 0 0 10px;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: .5px;
    background: linear-gradient(135deg, #4f46e5, #a855f7);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.message-header p {
    margin: 0;
    font-size: 14px;
    color: var(--message-text-2);
}

/* ---------- 卡片 ---------- */
.message-card {
    background: #fff;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, .9);
    box-shadow:
            0 1px 2px rgba(17, 24, 39, .04),
            0 14px 36px -18px rgba(17, 24, 39, .28);
}

.message-form-card {
    padding: 24px;
    margin-bottom: 20px;
    animation: message-rise .45s ease both;
}

.message-list-card {
    padding: 20px 24px 24px;
    animation: message-rise .45s ease .08s both;
}

@keyframes message-rise {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: none; }
}

/* ---------- 表单 ---------- */
.message-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 16px;
}

.message-field { margin-bottom: 16px; }

.message-label-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 8px;
}

.message-field label {
    font-size: 13px;
    font-weight: 600;
    color: #374151;
}

.message-req { color: #ef4444; font-style: normal; }

.message-counter {
    font-size: 12px;
    color: var(--message-text-3);
    font-variant-numeric: tabular-nums;
}

.message-input, .message-textarea {
    display: block;
    width: 100%;
    padding: 12px 14px;
    font-size: 15px;
    font-family: inherit;
    line-height: 1.5;
    color: var(--message-text);
    background: #fafbfe;
    border: 1.5px solid var(--message-border);
    border-radius: 12px;
    outline: none;
    transition: border-color .2s, box-shadow .2s, background .2s;
}

.message-textarea { resize: vertical; min-height: 108px; }

.message-input::placeholder, .message-textarea::placeholder { color: #b9bfcb; }

.message-input:focus, .message-textarea:focus {
    background: #fff;
    border-color: var(--message-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, .13);
}

.message-input.message-invalid,
.message-textarea.message-invalid {
    border-color: #f87171;
    background: #fff7f7;
}

.message-err {
    margin: 6px 0 0;
    font-size: 12px;
    color: #ef4444;
}

/* ---------- 验证码 ---------- */
.message-captcha-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.message-captcha-row .message-input {
    flex: 1;
    min-width: 0;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.message-captcha-canvas {
    flex: 0 0 auto;
    width: 178px;
    height: 48px;
    display: block;
    border-radius: 12px;
    border: 1.5px solid var(--message-border);
    background: #f4f5fa;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    transition: border-color .2s, box-shadow .2s;
}

.message-captcha-canvas:hover {
    border-color: var(--message-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, .10);
}

.message-captcha-canvas:active { transform: scale(.98); }

.message-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 4px;
}

.message-btn {
    padding: 12px 26px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: transform .16s ease, box-shadow .2s, background .2s, opacity .2s;
    -webkit-tap-highlight-color: transparent;
}

.message-btn.message-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--message-primary), var(--message-primary-2));
    box-shadow: 0 10px 22px -10px rgba(99, 102, 241, .95);
}

.message-btn.message-primary:hover:not(:disabled) { transform: translateY(-1px); }
.message-btn.message-primary:active:not(:disabled) { transform: translateY(0) scale(.99); }
.message-btn.message-primary:disabled { opacity: .65; cursor: not-allowed; }

.message-btn.message-ghost { background: #f3f4f7; color: #4b5563; }
.message-btn.message-ghost:hover { background: #e9ebf2; }

/* ---------- 列表 ---------- */
.message-list-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.message-list-head h2 { margin: 0; font-size: 17px; font-weight: 700; }

.message-count {
    padding: 3px 11px;
    font-size: 12px;
    color: #6b7280;
    background: #f3f4f7;
    border-radius: 999px;
    white-space: nowrap;
}

.message-empty {
    padding: 54px 0 46px;
    text-align: center;
    font-size: 14px;
    color: var(--message-text-3);
}

.message-empty-ico { font-size: 34px; margin-bottom: 10px; opacity: .75; }

.message-list { list-style: none; margin: 0; padding: 0; }

.message-item {
    display: flex;
    gap: 12px;
    padding: 18px 0;
    border-bottom: 1px dashed #eef0f5;
    animation: message-item-in .35s ease both;
}

@keyframes message-item-in {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: none; }
}

.message-item:last-child { border-bottom: none; padding-bottom: 4px; }
.message-item:first-child { padding-top: 16px; }

.message-avatar {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    user-select: none;
    box-shadow: 0 6px 14px -8px rgba(0, 0, 0, .6);
}

.message-body { flex: 1; min-width: 0; }

.message-meta {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 5px;
}

.message-name { font-size: 14px; font-weight: 600; color: #111827; }

.message-time { font-size: 12px; color: var(--message-text-3); }

.message-content {
    margin: 0;
    font-size: 14.5px;
    line-height: 1.68;
    color: #374151;
    white-space: pre-wrap;
    word-break: break-word;
}

.message-footer {
    margin: 34px 0 0;
    text-align: center;
    font-size: 12.5px;
    color: #b6bcc8;
}

/* ---------- Toast ---------- */
.message-toast {
    position: fixed;
    left: 50%;
    bottom: calc(36px + env(safe-area-inset-bottom, 0px));
    z-index: 99;
    max-width: 86vw;
    padding: 12px 22px;
    font-size: 14px;
    color: #fff;
    background: rgba(17, 24, 39, .92);
    border-radius: 12px;
    box-shadow: 0 16px 34px -14px rgba(0, 0, 0, .7);
    backdrop-filter: blur(6px);
    transform: translate(-50%, 0);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease;
}

.message-toast.message-show {
    opacity: 1;
    transform: translate(-50%, 0);
}

.message-toast.message-hide {
    opacity: 0;
    transform: translate(-50%, 14px);
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
    .message-page { padding: 28px 14px 64px; }
    .message-header { margin-bottom: 20px; }
    .message-header h1 { font-size: 23px; }
    .message-header p { font-size: 13px; }

    .message-card { border-radius: 16px; }
    .message-form-card { padding: 18px 16px 20px; }
    .message-list-card { padding: 16px 16px 20px; }

    .message-row { grid-template-columns: 1fr; gap: 0; }

    .message-actions { flex-direction: column-reverse; gap: 10px; }
    .message-actions .message-btn { width: 100%; padding: 13px 20px; }

    .message-item { gap: 10px; padding: 16px 0; }
    .message-avatar { flex-basis: 36px; width: 36px; height: 36px; font-size: 14px; }
    .message-content { font-size: 14px; }

    .message-captcha-canvas { width: 96px; height: 46px; }
}