.co-page { display: flex; gap: 28px; align-items: flex-start; padding-bottom: 60px; }
@media (max-width: 900px) { .co-page { flex-direction: column; } }

/* sidebar */
.co-sidebar { width: 300px; flex-shrink: 0; }
@media (max-width: 900px) { .co-sidebar { width: 100%; } }
.co-info-card { background: var(--t-header-bg); border-radius: 18px; overflow: hidden; }
.co-info-header {
    display: flex; align-items: flex-start; gap: 14px;
    padding: 28px 24px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.co-info-icon {
    width: 48px; height: 48px; border-radius: 12px;
    background: color-mix(in srgb, var(--t-primary) 20%, transparent); color: var(--t-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; flex-shrink: 0;
}
.co-info-title { font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.co-info-sub { font-size: .78rem; color: rgba(255,255,255,.5); line-height: 1.5; }
.co-items { padding: 20px 24px; display: flex; flex-direction: column; gap: 16px; }
.co-item { display: flex; align-items: flex-start; gap: 12px; }
.co-item-icon {
    width: 36px; height: 36px; border-radius: 9px; flex-shrink: 0;
    background: color-mix(in srgb, var(--t-primary) 15%, transparent); color: var(--t-primary);
    display: flex; align-items: center; justify-content: center; font-size: .82rem;
}
.co-item-label { font-size: .7rem; color: rgba(255,255,255,.4); margin-bottom: 2px; }
.co-item-val { font-size: .86rem; font-weight: 600; color: #fff; text-decoration: none; }
a.co-item-val:hover { color: var(--t-primary); }

/* form */
.co-form-col { flex: 1; }
.co-form-box {
    background: #fff; border-radius: 18px; border: 1.5px solid #f3f4f6;
    overflow: hidden;
}
.co-form-head {
    padding: 16px 24px; background: #fafafa; border-bottom: 1px solid #f3f4f6;
    font-size: .92rem; font-weight: 700; color: #374151;
    display: flex; align-items: center; gap: 9px;
}
.co-form-head-icon { color: var(--t-primary); }
.co-form { padding: 24px; display: flex; flex-direction: column; gap: 16px; }
.co-row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .co-row2 { grid-template-columns: 1fr; } }
.co-field { display: flex; flex-direction: column; gap: 6px; }
.co-label { font-size: .82rem; font-weight: 600; color: #374151; }
.co-req { color: #ef4444; }
.co-input-wrap { position: relative; }
.co-input-icon { position: absolute; top: 50%; right: 14px; transform: translateY(-50%); color: #9ca3af; font-size: .78rem; pointer-events: none; }
.co-input {
    width: 100%; height: 44px; border: 1.5px solid #e5e7eb; border-radius: 10px;
    padding: 0 38px 0 14px; font-size: .88rem; font-family: inherit;
    color: #111827; background: #fafafa; outline: none; transition: border-color .15s;
}
.co-input:focus {
    border-color: var(--t-primary); background: #fff;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--t-primary) 8%, transparent);
}
.co-textarea { height: auto; padding-top: 12px; padding-bottom: 12px; resize: vertical; }
.co-err { font-size: .75rem; color: #ef4444; }
.co-captcha-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.co-captcha-img { height: 46px; border-radius: 8px; cursor: pointer; border: 1.5px solid #e5e7eb; }
.co-captcha-refresh {
    width: 36px; height: 36px; border-radius: 8px; border: 1.5px solid #e5e7eb;
    background: #fff; color: #6b7280; cursor: pointer; font-size: .8rem;
    display: flex; align-items: center; justify-content: center; transition: all .15s;
}
.co-captcha-refresh:hover { border-color: var(--t-primary); color: var(--t-primary); }
.co-submit {
    width: 100%; height: 46px; border-radius: 10px; border: none;
    background: var(--t-primary); color: #fff; font-size: .95rem; font-weight: 700;
    cursor: pointer; transition: all .2s; display: flex; align-items: center;
    justify-content: center; gap: 8px; font-family: inherit;
}
.co-submit:hover { background: var(--t-primary-dark); transform: translateY(-2px); }