/* ============================================================
   collaborate.css — 合作邀約頁專屬樣式（個人創作者風格）
   ------------------------------------------------------------
   命名規則：BEM（block__element--modifier）
   全域共用樣式（頁面標題橫幅 / 統計數據卡片）在 base.css
   ============================================================ */

/* ===== 主容器 ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 24px 60px;
}

/* ===== 合作簡介 ===== */
.info-section {
    background: #fff;
    border-radius: 16px;
    padding: 36px 40px;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--color-border);
    margin-bottom: 40px;
    text-align: center;
}
.info-section__title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
}
.info-section__title i {
    color: var(--color-primary);
    margin-right: 8px;
}
.info-section__text {
    color: var(--color-gray);
    font-size: 15px;
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
}

/* ===== 合作方式 ===== */
.service-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}
.service-list__card {
    background: #fff;
    border-radius: var(--radius);
    padding: 28px 22px 24px;
    text-align: center;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.service-list__card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-btn);
}
.service-list__icon {
    font-size: 38px;
    color: var(--color-primary);
    margin-bottom: 12px;
}
.service-list__title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 6px;
}
.service-list__text {
    font-size: 14px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* ===== 合作流程 ===== */
.process {
    background: #fff;
    border-radius: 16px;
    padding: 36px 40px;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--color-border);
    margin-bottom: 40px;
}
.process__title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}
.process__title i {
    color: var(--color-primary);
    margin-right: 8px;
}
.process__steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}
.process__step {
    text-align: center;
    padding: 16px 12px;
    border-radius: 12px;
    background: var(--color-bg-light);
    border: 1px solid #dbeafe;
    transition: var(--transition);
}
.process__step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.process__num {
    display: inline-block;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    font-weight: 800;
    font-size: 18px;
    line-height: 40px;
    margin-bottom: 10px;
}
.process__heading {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}
.process__text {
    font-size: 13px;
    color: var(--color-gray);
    line-height: 1.5;
}

/* ===== 聯絡表單區 ===== */
.contact-section {
    background: var(--color-bg-light);
    border-radius: 16px;
    padding: 40px 44px;
    border: 1px solid #dbeafe;
}
.contact-section__row {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}
.contact-section__form {
    flex: 2;
    min-width: 240px;
}
.contact-section__info {
    flex: 1;
    min-width: 180px;
}
.contact-section__title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 6px;
}
.contact-section__title i {
    color: var(--color-primary);
    margin-right: 8px;
}
.contact-section__sub {
    color: var(--color-gray);
    font-size: 14px;
    margin-bottom: 20px;
}

/* ===== 表單 ===== */
.form__group {
    margin-bottom: 16px;
}
.form__label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-text);
}
.form__input,
.form__textarea,
.form__select {
    width: 100%;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    font-size: 14px;
    background: #fff;
    transition: var(--transition);
    outline: none;
    font-family: inherit;
}
.form__input:focus,
.form__textarea:focus,
.form__select:focus {
    border-color: var(--color-btn);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
.form__textarea {
    resize: vertical;
    min-height: 120px;
}
.form__hint {
    font-size: 12px;
    color: var(--color-gray);
    margin-top: 4px;
}
.btn--submit {
    background: var(--color-btn);
    color: #fff;
    border: none;
    padding: 14px 40px;
    border-radius: 40px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.btn--submit:hover {
    background: var(--color-primary);
    transform: scale(1.02);
}

/* ===== 聯絡資訊欄 ===== */
.contact-section__item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 20px;
    background: #fff;
    padding: 16px 18px;
    border-radius: 12px;
    border: 1px solid var(--color-border);
}
.contact-section__item > i {
    font-size: 22px;
    color: var(--color-primary);
    width: 32px;
    text-align: center;
    margin-top: 2px;
}
.contact-section__item h4 {
    font-size: 14px;
    font-weight: 600;
}
.contact-section__item p {
    font-size: 13px;
    color: var(--color-gray);
    line-height: 1.5;
}
.contact-section__item a {
    color: var(--color-btn);
    text-decoration: none;
}
.contact-section__item a:hover {
    text-decoration: underline;
}
.contact-section__social-box {
    margin-top: 16px;
    padding: 16px 18px;
    background: #fff;
    border-radius: 12px;
    border: 1px solid var(--color-border);
}
.contact-section__social-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}
.contact-section__social-title i {
    color: var(--color-primary);
    margin-right: 6px;
}
.contact-section__social {
    display: flex;
    gap: 12px;
    margin-top: 4px;
    flex-wrap: wrap;
}
.contact-section__social a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: 30px;
    background: #fff;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}
.contact-section__social a:hover {
    border-color: var(--color-btn);
    color: var(--color-primary);
    transform: translateY(-2px);
}
.contact-section__social a i {
    font-size: 16px;
    color: var(--color-primary);
}
.contact-section__note {
    margin-top: 16px;
    padding: 14px 18px;
    background: var(--color-bg-light);
    border-radius: 12px;
    border: 1px solid #dbeafe;
    text-align: center;
}
.contact-section__note p {
    font-size: 13px;
    color: var(--color-gray);
    line-height: 1.6;
}
.contact-section__note i {
    color: var(--color-primary);
}

/* ===== 響應式 ===== */
@media (max-width: 992px) {
    .contact-section {
        padding: 28px 24px;
    }
    .process {
        padding: 28px 24px;
    }
    .info-section {
        padding: 28px 24px;
    }
}
@media (max-width: 600px) {
    .container {
        padding: 20px 16px 40px;
    }
    .contact-section__row {
        flex-direction: column;
    }
    .service-list {
        grid-template-columns: 1fr;
    }
    .process__steps {
        grid-template-columns: 1fr;
    }
    .contact-section__social a {
        width: 100%;
        justify-content: center;
    }
    .btn--submit {
        width: 100%;
        justify-content: center;
    }
}