/* =========================================================
   LANDING PAGE: XÂY DỰNG HỆ THỐNG BÁN HÀNG HIỆN ĐẠI - AI SALES
   Starter CSS — tinh chỉnh sau khi có ảnh + nội dung thực tế
   Theme HBR: xanh #0a2c6b / đỏ #e1261c
   ========================================================= */
:root {
    --hbr-blue: #0a2c6b;
    --hbr-blue-2: #1746a2;
    --hbr-red: #e1261c;
    --hbr-yellow: #ffcf33;
}

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0);
    white-space: nowrap; border: 0;
}

/* ---------- CTA chung ---------- */
.go_box {
    display: block;
    max-width: 360px;
    margin: 0 auto;
    padding: 14px 24px;
    text-align: center;
    text-transform: uppercase;
    font-weight: 700;
    color: #fff;
    border-radius: 50px;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease;
    box-shadow: 0 6px 18px rgba(10, 44, 107, .25);
}
.go_box.btn-blue {
    background: linear-gradient(90deg, var(--hbr-blue), var(--hbr-blue-2));
}
.go_box:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(10, 44, 107, .35);
}

/* ---------- SECTION 1: VIDEO + FORM ---------- */
.box_about_us {
    padding: 40px 0;
    background: #f4f7fc;
}
.box_about_us .img iframe {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
}
.box_about_us .form_all {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .08);
    overflow: hidden;
}
.box_about_us .form_all_top {
    height: 8px;
    background: linear-gradient(90deg, var(--hbr-blue), var(--hbr-red));
}
.box_about_us .form_all_main {
    padding: 24px;
}

/* ---------- SECTION 2: TÔI LÀM CHỦ NHƯNG... (card pill icon + chữ) ---------- */
.performance-marketing-profit-system .section-2 {
    overflow: hidden;
    padding: 60px 0 70px;
    background: linear-gradient(90deg, #00285A 0%, #1B79C5 47.12%, #003D63 100%);
}
.performance-marketing-profit-system .section-2 .s2-heading {
    text-align: center;
    margin-bottom: 40px;
}
.performance-marketing-profit-system .section-2 .s2-title {
    position: relative;
    margin: 0 auto 18px;
    max-width: 1100px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 700;
    font-size: 48px;
    line-height: 51px;
    letter-spacing: 0;
    text-align: center;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 1);
    text-shadow: 0px 4px 6.6px rgba(0, 0, 0, 0.25);
}
.performance-marketing-profit-system .section-2 .s2-quote {
    color: #7fb2ff;
    font-size: 1.1em;
    line-height: 0;
    vertical-align: -0.15em;
}
.performance-marketing-profit-system .section-2 .s2-quote--open { margin-right: 4px; }
.performance-marketing-profit-system .section-2 .s2-quote--close { margin-left: 4px; }
.performance-marketing-profit-system .section-2 .s2-subtitle {
    margin: 0 auto;
    max-width: 1100px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 700;
    font-size: 24px;
    line-height: 36px;
    text-align: center;
    color: rgba(255, 255, 255, 1);
    text-shadow: 0px 4px 6.6px rgba(0, 0, 0, 0.25);
}
.performance-marketing-profit-system .section-2 .s2-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 562px));
    justify-content: center;
    gap: 22px 36px;
}
.performance-marketing-profit-system .section-2 .s2-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
    width: 562px;
    max-width: 100%;
    height: 97px;
    padding: 14px 22px;
    background: linear-gradient(259.94deg, #0864AF 42.45%, #031D45 98.97%);
    /* vát chéo góc trái-trên & phải-dưới */
    clip-path: polygon(22px 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%, 0 22px);
    /* glow xanh (tương đương box-shadow 0px 4px 12.3px rgba(110,190,255,.93), theo được hình vát) */
    filter: drop-shadow(0px 4px 12.3px rgba(110, 190, 255, 0.93));
}
.performance-marketing-profit-system .section-2 .s2-card-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.performance-marketing-profit-system .section-2 .s2-card-icon img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}
.performance-marketing-profit-system .section-2 .s2-card-text {
    margin: 0;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 700;
    font-size: 21px;
    line-height: 33px;
    color: rgba(255, 255, 255, 1);
    text-shadow: 0px 4px 6.6px rgba(0, 0, 0, 0.25);
}

@media (max-width: 767px) {
    .performance-marketing-profit-system .section-2 { padding: 44px 0 48px; }
    .performance-marketing-profit-system .section-2 .s2-title { font-size: 24px; }
    .performance-marketing-profit-system .section-2 .s2-title br { display: none; }
    .performance-marketing-profit-system .section-2 .s2-subtitle { font-size: 15px; line-height: 23px; }
    .performance-marketing-profit-system .section-2 .s2-grid { grid-template-columns: 1fr; gap: 14px; }
    .performance-marketing-profit-system .section-2 .s2-card { width: 100%; height: auto; min-height: 72px; padding: 12px 16px; }
    .performance-marketing-profit-system .section-2 .s2-card-text { font-size: 15px; line-height: 20px; }
}

/* ---------- SECTION 3: HẬU QUẢ NẾU CỨ TIẾP TỤC ---------- */
.performance-marketing-profit-system .section-3 {
    overflow: hidden;
    padding: 60px 0 70px;
    background: #dCe9f7; /* màu nền dự phòng khi chưa có ảnh bg */
}
.performance-marketing-profit-system .section-3 .cons-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.performance-marketing-profit-system .section-3 .cons-title {
    margin: 0 0 50px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 800;
    font-size: 38px;
    line-height: 1.4;
    letter-spacing: 0;
    text-align: center;
    text-transform: uppercase;
    background: linear-gradient(360deg, #00285A 0%, #0055C0 79.51%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.performance-marketing-profit-system .section-3 .cons-list {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 50px;
}
.performance-marketing-profit-system .section-3 .cons-row {
    display: flex;
    align-items: center;
    gap: 32px;
}
.performance-marketing-profit-system .section-3 .cons-label {
    flex-shrink: 0;
    width: 320px;
    padding-right: 4px;
    text-align: right;
    white-space: nowrap;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 800;
    font-size: 48px;
    line-height: 1.2;
    letter-spacing: 0;
    text-transform: uppercase;
    background: linear-gradient(360deg, #00285A 0%, #0055C0 79.51%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.performance-marketing-profit-system .section-3 .cons-desc {
    margin: 0;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 700;
    font-size: 22px;
    line-height: 30px;
    letter-spacing: 0;
    text-transform: uppercase;
    color: rgba(0, 40, 90, 1);
}
@media (max-width: 767px) {
    .performance-marketing-profit-system .section-3 { padding: 44px 0 48px; }
    .performance-marketing-profit-system .section-3 .cons-title { font-size: 26px; margin-bottom: 32px; }
    .performance-marketing-profit-system .section-3 .cons-list { gap: 32px; }
    .performance-marketing-profit-system .section-3 .cons-row { flex-direction: column; align-items: stretch; gap: 6px; }
    .performance-marketing-profit-system .section-3 .cons-label {
        width: auto;
        text-align: left;
        font-size: 32px;
        display: flex;
        align-items: center;
        gap: 14px;
    }
    .performance-marketing-profit-system .section-3 .cons-label::after {
        content: "";
        flex: 1 1 auto;
        height: 14px;
        background:
            radial-gradient(circle at calc(100% - 7px) center, #ffffff 0 2.5px, #1f7bd6 2.5px 5.5px, rgba(255, 255, 255, 0) 6.5px) right center / 100% 14px no-repeat,
            repeating-linear-gradient(to right, #4aa3ff 0 5px, rgba(255, 255, 255, 0) 5px 11px) left center / calc(100% - 18px) 2px no-repeat;
    }
    .performance-marketing-profit-system .section-3 .cons-desc { font-size: 16px; line-height: 24px; }
}

/* ---------- SECTION 4: ĐÂY KHÔNG PHẢI KINH DOANH ---------- */
.performance-marketing-profit-system .section-4 {
    overflow: hidden;
    height: 389px;
    display: flex;
    align-items: center;
    background: linear-gradient(90deg, #00285A 0%, #1B79C5 47.12%, #003D63 100%);
}
.performance-marketing-profit-system .section-4 .s4-overlay {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.performance-marketing-profit-system .section-4 .s4-text {
    margin: 0;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 800;
    font-size: 36px;
    line-height: 49px;
    letter-spacing: 0;
    text-align: center;
    text-transform: uppercase;
    background: linear-gradient(360deg, #86E2FF 12.66%, #FFFFFF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    /* đổ bóng chữ cho gradient text */
    filter: drop-shadow(0px 4px 4px rgba(0, 0, 0, 0.25));
}
@media (max-width: 767px) {
    .performance-marketing-profit-system .section-4 { height: auto; min-height: 280px; padding: 44px 0; }
    .performance-marketing-profit-system .section-4 .s4-text { font-size: 22px; line-height: 32px; }
    .performance-marketing-profit-system .section-4 .s4-text br { display: none; }
}

/* ---------- SECTION 5: GIẢI PHÁP / LỢI ÍCH (copy s2c) ---------- */
.s5 {
    position: relative;
    overflow: hidden;
    background: #eaf2fb; /* nền dự phòng khi chưa có s5-bg.png */
}
.s5 .s5-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.s5 > .container {
    position: relative;
    z-index: 1;
}
.s5 .s5-title {
    margin: 0 0 18px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 800;
    font-size: 38px;
    line-height: 1.3;
    letter-spacing: 0;
    text-align: center;
    text-transform: uppercase;
    background: linear-gradient(360deg, #00285A 0%, #0055C0 79.51%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.s5 .s5-subtitle {
    margin: 0 auto 40px;
    max-width: 1000px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 500;
    font-size: 26px;
    line-height: 33px;
    text-align: center;
    color: rgba(0, 40, 90, 1);
}
/* === s2c-benefits-row (bê nguyên từ khoa-hoc-xay-dung-mo-hinh-kinh-doanh, giữ y hệt) === */
.s2c-benefits-row {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    padding: 0;
    position: relative;
}
.s2c-benefit-wrap {
    padding: 5px;
    height: 190px;
}
.s2c-benefit-wrap.s2c-cut-top-left { clip-path: polygon(0 0, calc(100% - 25px) 0, 100% 25px, 100% calc(100% - 25px), calc(100% - 25px) 100%, 0 100%); }
.s2c-benefit-wrap.s2c-cut-top-right { clip-path: polygon(25px 0, 100% 0, 100% 100%, 25px 100%, 0 calc(100% - 25px), 0 25px); }
.s2c-benefit-wrap.s2c-cut-mid-left { clip-path: polygon(0 0, calc(100% - 25px) 0, 100% 25px, 100% calc(100% - 25px), calc(100% - 25px) 100%, 0 100%); }
.s2c-benefit-wrap.s2c-cut-mid-right { clip-path: polygon(25px 0, 100% 0, 100% 100%, 25px 100%, 0 calc(100% - 25px), 0 25px); }
.s2c-benefit-wrap.s2c-cut-bot-left { clip-path: polygon(0 0, calc(100% - 25px) 0, 100% 25px, 100% 100%, 0 100%); }
.s2c-benefit-wrap.s2c-cut-bot-right { clip-path: polygon(25px 0, 100% 0, 100% 100%, 0 100%, 0 25px); }

.s2c-benefit-wrap.s2c-cut-top-left,
.s2c-benefit-wrap.s2c-cut-mid-left,
.s2c-benefit-wrap.s2c-cut-bot-left {
    background: linear-gradient(90deg, rgba(12, 195, 180, 0.1) 10.03%, rgba(20, 199, 184, 0.22) 22.06%, rgba(48, 205, 192, 0.36) 36.1%, rgba(81, 213, 202, 0.51) 51.13%, rgba(128, 224, 216, 0.66) 66.17%, rgba(185, 237, 233, 0.83) 83.22%);
}
.s2c-benefit-wrap.s2c-cut-top-right,
.s2c-benefit-wrap.s2c-cut-mid-right,
.s2c-benefit-wrap.s2c-cut-bot-right {
    background: linear-gradient(270deg, rgba(12, 195, 180, 0.1) 10.03%, rgba(20, 199, 184, 0.22) 22.06%, rgba(48, 205, 192, 0.36) 36.1%, rgba(81, 213, 202, 0.51) 51.13%, rgba(128, 224, 216, 0.66) 66.17%, rgba(185, 237, 233, 0.83) 83.22%);
}

.s2c-benefit {
    padding: 1rem 1.25rem;
    height: 100%;
}
.s2c-benefit-title {
    font-family: "Inter-Bold", sans-serif;
    font-size: 0.9375rem;
    font-weight: 700;
    color: rgba(0, 40, 90, 1);
    text-transform: uppercase;
    padding: 0.75rem 1rem;
    margin-bottom: 0;
    min-height: 56px;
    display: flex;
    align-items: center;
}
.s2c-benefit-title-left {
    background: linear-gradient(90deg, rgba(217, 217, 217, 0) 0%, rgba(180, 226, 255, 0.75) 100%);
    justify-content: flex-end;
    text-align: right;
    width: 97%;
}
.s2c-benefit-title-right {
    background: linear-gradient(270deg, rgba(217, 217, 217, 0) 0%, rgba(180, 226, 255, 0.75) 100%);
    width: 97%;
    margin-left: auto;
}
.s2c-benefit-left {
    display: flex;
    justify-content: flex-end;
    background: linear-gradient(90deg, rgba(10, 112, 203, 0) 0%, #1C3E70 42%, #00285A 100%);
}
.s2c-benefit-right {
    background: linear-gradient(270deg, rgba(10, 112, 203, 0) 0%, #1C3E70 42%, #00285A 100%);
}
.s2c-benefit.s2c-cut-top-left { clip-path: polygon(0 0, calc(100% - 25px) 0, 100% 25px, 100% calc(100% - 25px), calc(100% - 25px) 100%, 0 100%); }
.s2c-benefit.s2c-cut-top-right { clip-path: polygon(25px 0, 100% 0, 100% 100%, 25px 100%, 0 calc(100% - 25px), 0 25px); }
.s2c-benefit.s2c-cut-mid-left { clip-path: polygon(0 0, calc(100% - 25px) 0, 100% 25px, 100% calc(100% - 25px), calc(100% - 25px) 100%, 0 100%); }
.s2c-benefit.s2c-cut-mid-right { clip-path: polygon(25px 0, 100% 0, 100% 100%, 25px 100%, 0 calc(100% - 25px), 0 25px); }
.s2c-benefit.s2c-cut-bot-left { clip-path: polygon(0 0, calc(100% - 25px) 0, 100% 25px, 100% 100%, 0 100%); }
.s2c-benefit.s2c-cut-bot-right { clip-path: polygon(25px 0, 100% 0, 100% 100%, 0 100%, 0 25px); }

.s2c-benefit p {
    color: #fff;
    font-family: "Inter-Regular", sans-serif;
    font-size: 1.1875rem;
    line-height: 1.5;
    margin-bottom: 0;
    text-align: left;
    max-width: 469px;
}
/* SECTION 6: banner full màn "5 trụ cột" */
.s6-cta {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    background: linear-gradient(90deg, #00285A 0%, #1B79C5 47.12%, #003D63 100%);
}
.s6-cta-text {
    margin: 0;
    max-width: 940px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 700;
    font-size: 36px;
    line-height: 50px;
    text-align: center;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 1);
    text-shadow: 0px 4px 6.6px rgba(0, 0, 0, 0.25);
}
@media (max-width: 767px) {
    .s6-cta { height: auto; padding: 28px 16px; }
    .s6-cta-text { font-size: 18px; line-height: 28px; }
}

/* override cho section 5 (AI Sales) */
.s5 .s2c-benefit-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    object-fit: contain;
    margin-right: 10px;
}
.s5 .s2c-benefit-wrap { height: 116px; }
.s5 .s2c-benefit { height: 106px; }
.s5 .s2c-benefits-row .row { --bs-gutter-x: 30px; }
.s5 .s2c-benefits-row .row + .row { margin-top: 30px; }
/* card giữa: vát chéo cả 4 góc */
.s5 .offset-md-3 .s2c-benefit-wrap,
.s5 .offset-md-3 .s2c-benefit {
    clip-path: polygon(25px 0, calc(100% - 25px) 0, 100% 25px, 100% calc(100% - 25px), calc(100% - 25px) 100%, 25px 100%, 0 calc(100% - 25px), 0 25px) !important;
}
.s5 .s2c-benefits-row .offset-md-3 {
    flex: 0 0 auto;
    width: 910px;
    max-width: 100%;
    margin-left: auto !important;
    margin-right: auto !important;
}
.s5 .offset-md-3 .s2c-benefit {
    background: #00285A;
    justify-content: center;
}
.s5 .offset-md-3 .s2c-benefit p {
    text-align: center;
    max-width: 100%;
}
.s5 .offset-md-3 .s2c-benefit-title.s2c-benefit-title-left {
    background: radial-gradient(50% 50% at 50% 50%, rgba(217, 217, 217, 0) 0%, rgba(180, 226, 255, 0.75) 43.75%);
    justify-content: center;
    text-align: center;
    width: 100%;
}
@media (max-width: 767px) {
    .s5 .s5-title { font-size: 26px; }
    .s5 .s5-subtitle { font-size: 18px; line-height: 26px; margin-bottom: 28px; }
}
@media screen and (max-width: 575px) {
    .s2c-benefit-wrap {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 35px 100%, 0 calc(100% - 35px)) !important;
        background: linear-gradient(25.83deg, #FFFFFF 13.82%, #F7FCFF 16.75%, #E3F4FF 19.68%, #C3E8FF 23.6%, #95D7FF 28.49%, #5BC1FF 33.38%, #7DCEFF 36.31%, #B4E2FF 41.2%, #DDF2FF 46.09%, #F5FBFF 49.02%, #FFFFFF 51.96%, #F8FCFF 53.91%, #E6F5FF 57.82%, #C9EAFF 61.74%, #A0DBFF 66.62%, #6CC7FF 71.51%, #5BC1FF 73.47%, #7DCEFF 76.4%, #B4E2FF 82.27%, #DDF2FF 87.16%, #F5FBFF 91.07%, #FFFFFF 93.03%) !important;
        height: 144px;
        margin-bottom: 0.5rem;
    }
    .s2c-benefit {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0px 100%, 0 calc(100% - 35px)) !important;
        background: linear-gradient(90deg, rgba(10, 112, 203, 0) -127.32%, #1C3E70 -31.85%, #00285A 100%) !important;
    }
    .s2c-benefits-row .col-md-6 {
        margin-bottom: 0 !important;
    }
    .s2c-benefit p {
        font-size: 0.8rem;
        max-width: 100%;
    }
    .s2c-benefits-row {
        flex-direction: column !important;
    }
    .s2c-benefit-title {
        width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        text-align: left !important;
        justify-content: flex-start !important;
        background: linear-gradient(90deg, rgba(180, 226, 255, 0.75) 0%, rgba(217, 217, 217, 0) 100%) !important;
    }
}

/* ====== SECTION 7: BẠN NHẬN ĐƯỢC GÌ (copy section-6 doi-ngu, đã bỏ subtitle + deliverables) ====== */
.performance-marketing-profit-system .section-7 {
    padding: 80px 0;
    z-index: 0;
}
.performance-marketing-profit-system .section-7 .s6-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.performance-marketing-profit-system .section-7 .s6-title {
    margin: 0 0 4px;
    text-align: center;
    text-transform: uppercase;
    font-weight: 800;
    font-size: 34px;
    line-height: 120%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}
.performance-marketing-profit-system .section-7 .s6-title-text {
    font-family: 'SVN-Bebas Neue', sans-serif;
    font-weight: 700;
    font-size: 50px;
    line-height: 100%;
    letter-spacing: 0.04em;
    background: linear-gradient(319.61deg, #004EB0 15.83%, #00285A 72.91%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.performance-marketing-profit-system .section-7 .s6-title-marker {
    flex-shrink: 0;
    width: auto;
    height: 30px;
    object-fit: contain;
}
.performance-marketing-profit-system .section-7 .s6-title-br-mb {
    display: none;
}
.performance-marketing-profit-system .section-7 .s6-connector {
    display: flex;
    justify-content: center;
    margin: 0 auto 4px;
}
.performance-marketing-profit-system .section-7 .s6-connector svg {
    flex: 0 0 1203px;
    width: 1203px;
    max-width: none;
    height: 70px;
}
.performance-marketing-profit-system .section-7 .s6-grid {
    display: grid;
    grid-template-columns: repeat(3, 385px);
    justify-content: center;
    gap: 24px;
}
.performance-marketing-profit-system .section-7 .s6-card {
    width: 385px;
    max-width: 100%;
    padding: 0 0 24px;
    border-radius: 50px;
    box-shadow: 5px 8px 8px 8px rgba(35, 94, 167, 0.25);
}
.performance-marketing-profit-system .section-7 .s6-card:nth-child(1) {
    background: rgba(64, 90, 123, 1);
    box-shadow: 3px 5px 4px 4px rgba(35, 94, 167, 0.25);
}
.performance-marketing-profit-system .section-7 .s6-card:nth-child(2) {
    background: linear-gradient(180deg, #235EA7 0%, #234A7B 100%);
    box-shadow: 3px 5px 4px 4px rgba(35, 94, 167, 0.25);
}
.performance-marketing-profit-system .section-7 .s6-card:nth-child(3) {
    background:
        linear-gradient(199.72deg, #174B8C 8.85%, #14427C 57.32%, #061426 86.81%),
        linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, rgba(102, 102, 102, 0.2) 100%);
    box-shadow: 3px 5px 4px 4px rgba(35, 94, 167, 0.25);
}
.performance-marketing-profit-system .section-7 .s6-card-head {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 80px;
    padding: 14px 22px;
    border-radius: 50px 50px 0 0;
}
.performance-marketing-profit-system .section-7 .s6-card:nth-child(1) .s6-card-head {
    background:
        linear-gradient(180deg, #28394E 0%, #2E5688 100%),
        linear-gradient(0deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2));
    box-shadow: 0px 4px 5px 0px rgba(0, 40, 90, 0.35);
}
.performance-marketing-profit-system .section-7 .s6-card:nth-child(2) .s6-card-head {
    background: linear-gradient(180deg, #235EA7 0%, #104A92 100%);
    box-shadow: 0px 4px 4px 0px rgba(0, 0, 0, 0.25);
}
.performance-marketing-profit-system .section-7 .s6-card:nth-child(3) .s6-card-head {
    background: linear-gradient(180deg, #00285A 0%, #1F589F 100%);
    box-shadow: 0px 4px 5px 0px rgba(0, 40, 90, 0.35);
}
.performance-marketing-profit-system .section-7 .s6-card-badge {
    font-size: 22px;
    line-height: 1;
}
.performance-marketing-profit-system .section-7 .s6-card-title {
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    line-height: 1.3;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.performance-marketing-profit-system .section-7 .s6-card-list {
    margin: 18px 0 0;
    padding: 0 26px;
    list-style: none;
}
.performance-marketing-profit-system .section-7 .s6-card-list li {
    position: relative;
    padding-left: 22px;
    margin-bottom: 14px;
    color: #fff;
    font-weight: 400;
    font-size: 15px;
    line-height: 22px;
    text-align: left;
}
.performance-marketing-profit-system .section-7 .s6-card-list li b {
    font-weight: 700;
}
.performance-marketing-profit-system .section-7 .s6-card-list li::before {
    content: '+';
    position: absolute;
    left: 0;
    top: 0;
    color: #86E2FF;
    font-size: 16px;
    font-weight: 700;
}
.performance-marketing-profit-system .reg-cta {
    display: block;
    width: fit-content;
    margin: 40px auto 0;
    padding: 14px 36px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 8px;
    background: linear-gradient(180deg, #FF3030 0%, #9E0000 100%);
    box-shadow: 0px 4px 15px rgba(215, 0, 0, 0.55);
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    transition: transform 0.2s ease;
}
.performance-marketing-profit-system .reg-cta:hover {
    transform: translateY(-3px);
    color: #fff;
}
@media (max-width: 1199px) {
    .performance-marketing-profit-system .section-7 .s6-connector svg { flex-basis: 100%; width: 100%; }
    .performance-marketing-profit-system .section-7 .s6-grid { grid-template-columns: repeat(3, 1fr); }
    .performance-marketing-profit-system .section-7 .s6-card { width: 100%; min-height: 0; }
}
@media (max-width: 767px) {
    .performance-marketing-profit-system .section-7 { padding: 48px 0; }
    .performance-marketing-profit-system .section-7 .s6-title { gap: 12px; margin-bottom: 20px; }
    .performance-marketing-profit-system .section-7 .s6-title-text { font-size: 38px; line-height: 46px; text-align: center; }
    .performance-marketing-profit-system .section-7 .s6-title-br-mb { display: inline; }
    .performance-marketing-profit-system .section-7 .s6-title-marker { height: 24px; }
    .performance-marketing-profit-system .section-7 .s6-connector { display: none; }
    .performance-marketing-profit-system .section-7 .s6-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
    .performance-marketing-profit-system .section-7 .s6-card-title { font-size: 16px; line-height: 22px; }
    .performance-marketing-profit-system .section-7 .s6-card-list li { font-size: 14px; line-height: 21px; }
}

/* ====== SECTION 8: THÔNG TIN GIẢNG VIÊN (copy section-7 sinh-loi) ====== */
.performance-marketing-profit-system .section-8 {
    padding: 80px 0 60px;
    background: #002659;
    overflow: hidden;
}
/* Khối "Họ đã làm được" phía trên */
.performance-marketing-profit-system .section-8 .s8-proof {
    margin-bottom: 56px;
}
.performance-marketing-profit-system .section-8 .s8-proof-title {
    position: relative;
    margin: 0 auto 32px;
    padding-bottom: 14px;
    width: fit-content;
    max-width: 100%;
    font-weight: 800;
    font-size: 35px;
    line-height: 44px;
    text-align: center;
    text-transform: uppercase;
    filter: drop-shadow(0px 4px 4px rgba(0, 0, 0, 0.25));
    background: linear-gradient(360deg, #86E2FF 12.66%, #FFFFFF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.performance-marketing-profit-system .section-8 .s8-proof-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 204px;
    max-width: 100%;
    height: 2px;
    background: #86E2FF;
}
.performance-marketing-profit-system .section-8 .s8-proof-imgs {
    display: flex;
    justify-content: center;
    gap: 25px;
}
.performance-marketing-profit-system .section-8 .s8-proof-imgs img {
    width: 399px;
    height: 235px;
    max-width: 100%;
    object-fit: cover;
    border-radius: 8px;
}
.performance-marketing-profit-system .section-8 .s8-proof-video {
    width: 399px;
    height: 235px;
    max-width: 100%;
    border: 0;
    border-radius: 8px;
}
@media (max-width: 991px) {
    .performance-marketing-profit-system .section-8 .s8-proof-imgs { flex-wrap: wrap; }
    .performance-marketing-profit-system .section-8 .s8-proof-imgs img { width: 100%; max-width: 399px; height: auto; }
    .performance-marketing-profit-system .section-8 .s8-proof-video { width: 100%; max-width: 399px; aspect-ratio: 399 / 235; height: auto; }
    .performance-marketing-profit-system .section-8 .s8-proof-title { font-size: 24px; line-height: 30px; }
}
.performance-marketing-profit-system .section-8 .s7-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.performance-marketing-profit-system .section-8 .s7-grid {
    display: grid;
    grid-template-columns: 420px 580px;
    justify-content: center;
    gap: 60px;
    align-items: center;
}
.performance-marketing-profit-system .section-8 .s7-photo-wrap { position: relative; }
.performance-marketing-profit-system .section-8 .s7-photo {
    width: 100%;
    height: auto;
    display: block;
}
.performance-marketing-profit-system .section-8 .s7-eyebrow,
.performance-marketing-profit-system .section-8 .s7-eyebrow-mb {
    margin: 0 0 18px;
    padding-bottom: 14px;
    font-weight: 800;
    font-size: 35px;
    line-height: 44px;
    text-transform: uppercase;
    border-bottom: 2px solid #86E2FF;
    width: fit-content;
    filter: drop-shadow(0px 4px 4px rgba(0, 0, 0, 0.25));
    background: linear-gradient(360deg, #86E2FF 12.66%, #FFFFFF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.performance-marketing-profit-system .section-8 .s7-eyebrow-mb { display: none; }
.performance-marketing-profit-system .section-8 .s7-name {
    margin: 0 0 22px;
    color: #fff;
    font-weight: 800;
    font-size: 34px;
    line-height: 42px;
    text-transform: uppercase;
}
.performance-marketing-profit-system .section-8 .s7-creds {
    margin: 0;
    padding: 0;
    list-style: none;
}
.performance-marketing-profit-system .section-8 .s7-creds li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 10px;
    color: #fff;
    font-weight: 400;
    font-size: 15px;
    line-height: 22px;
}
.performance-marketing-profit-system .section-8 .s7-creds li::before {
    content: '•';
    position: absolute;
    left: 4px;
    top: 0;
    color: #86E2FF;
    font-size: 14px;
}
.performance-marketing-profit-system .section-8 .s7-stats {
    position: relative;
    left: 50%;
    transform: translateX(-50%);
    display: none;
    align-items: flex-start;
    justify-content: space-between;
    gap: 40px;
    width: 1730px;
    max-width: 100vw;
    margin: 56px 0 0;
    padding: 40px 0;
}
.performance-marketing-profit-system .section-8 .s7-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.performance-marketing-profit-system .section-8 .s7-stat-line {
    flex-shrink: 0;
    align-self: center;
    width: 10px;
    height: 204px;
    background: radial-gradient(50% 49.87% at 50.03% 50.03%, #FFFFFF 0%, rgba(230, 255, 255, 0.84) 7%, rgba(201, 255, 255, 0.65) 16%, rgba(174, 255, 255, 0.47) 26%, rgba(152, 255, 255, 0.33) 36%, rgba(133, 255, 255, 0.21) 47%, rgba(119, 255, 255, 0.12) 58%, rgba(109, 255, 255, 0.05) 70%, rgba(103, 255, 255, 0.01) 83%, rgba(102, 255, 255, 0) 100%);
    background-blend-mode: color-dodge;
}
.performance-marketing-profit-system .section-8 .s7-stat-num {
    height: 80px;
    width: auto;
    max-width: 100%;
}
.performance-marketing-profit-system .section-8 .s7-stats-deco {
    display: block;
    height: 100px;
    width: 180px;
    max-width: 100%;
    align-self: center;
    flex-shrink: 0;
    background: linear-gradient(180deg, #1F7BD6 0%, #0a3d8f 100%);
    -webkit-mask-repeat: no-repeat;
            mask-repeat: no-repeat;
    -webkit-mask-position: center;
            mask-position: center;
    -webkit-mask-size: contain;
            mask-size: contain;
    -webkit-mask-image: url('../../images/courses/performance-marketing-profit-system-xay-he-thong-marketing-sinh-loi/s7-stats-deco-left.png');
            mask-image: url('../../images/courses/performance-marketing-profit-system-xay-he-thong-marketing-sinh-loi/s7-stats-deco-left.png');
}
.performance-marketing-profit-system .section-8 .s7-stats-deco--right {
    -webkit-mask-image: url('../../images/courses/performance-marketing-profit-system-xay-he-thong-marketing-sinh-loi/s7-stats-deco-right.png');
            mask-image: url('../../images/courses/performance-marketing-profit-system-xay-he-thong-marketing-sinh-loi/s7-stats-deco-right.png');
}
.performance-marketing-profit-system .section-8 .s7-stat-label {
    margin: 0;
    color: #fff;
    font-weight: 700;
    font-size: 22px;
    line-height: 28px;
    text-align: center;
    text-transform: uppercase;
}
/* Đối tác tiêu biểu */
.performance-marketing-profit-system .section-8 .s8-partners {
    margin-top: 56px;
}
.performance-marketing-profit-system .section-8 .s8-partners-title {
    margin: 0 0 28px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 800;
    font-size: 33px;
    line-height: 1.3;
    text-align: center;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 1);
}
.performance-marketing-profit-system .section-8 .s8-partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 300px);
    justify-content: center;
    gap: 24px;
}
.performance-marketing-profit-system .section-8 .s8-partner {
    width: 300px;
    height: 115px;
    max-width: 100%;
    border-radius: 22px;
    background: rgba(255, 255, 255, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}
.performance-marketing-profit-system .section-8 .s8-partner img {
    max-width: 78%;
    max-height: 68%;
    object-fit: contain;
}
@media (max-width: 1280px) {
    .performance-marketing-profit-system .section-8 .s8-partners-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .performance-marketing-profit-system .section-8 .s8-partner { width: 100%; }
}
@media (max-width: 767px) {
    .performance-marketing-profit-system .section-8 .s8-partners-grid { grid-template-columns: repeat(2, 1fr); }
    .performance-marketing-profit-system .section-8 .s8-partners-title { font-size: 24px; }
}

@media (max-width: 1199px) {
    .performance-marketing-profit-system .section-8 .s7-grid { grid-template-columns: 360px 1fr; gap: 40px; }
}
@media (max-width: 991px) {
    .performance-marketing-profit-system .section-8 .s7-grid { grid-template-columns: 1fr; gap: 32px; }
    .performance-marketing-profit-system .section-8 .s7-photo-wrap { max-width: 360px; margin: 0 auto; }
    .performance-marketing-profit-system .section-8 .s7-eyebrow,
    .performance-marketing-profit-system .section-8 .s7-name { display: none; }
    .performance-marketing-profit-system .section-8 .s7-eyebrow-mb {
        display: block;
        margin: 0 auto 16px;
        font-size: 24px;
        line-height: 30px;
    }
    .performance-marketing-profit-system .section-8 .s7-creds { max-width: 540px; margin: 0 auto; }
    .performance-marketing-profit-system .section-8 .s7-stats-deco { display: none; }
    .performance-marketing-profit-system .section-8 .s7-stat-line { display: none; }
    .performance-marketing-profit-system .section-8 .s7-stats {
        left: auto;
        transform: none;
        width: 100%;
        max-width: 100%;
        justify-content: center;
    }
}
@media (max-width: 575px) {
    .performance-marketing-profit-system .section-8 { padding: 48px 0; }
    .performance-marketing-profit-system .section-8 .s7-stats { flex-wrap: wrap; gap: 24px; }
    .performance-marketing-profit-system .section-8 .s7-stat { flex: 0 0 40%; }
    .performance-marketing-profit-system .section-8 .s7-stat-num { height: 64px; }
}

/* ====== SECTION 9: DÀNH CHO AI / KHÔNG DÀNH CHO AI ====== */
.section-9 {
    position: relative;
    overflow: hidden;
    padding: 70px 0;
}
.section-9 .s9-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.section-9 > .container {
    position: relative;
    z-index: 1;
}
.section-9 .s9-title-br-mb { display: none; }
.section-9 .s9-title {
    margin: 0 0 40px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 800;
    font-size: 36px;
    line-height: 1.2;
    text-align: center;
    text-transform: uppercase;
    background: linear-gradient(360deg, #00285A 0%, #0055C0 79.51%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
/* 3 card "dành cho ai" */
.section-9 .s9-for-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 60px;
}
.section-9 .s9-for-card {
    position: relative;
    width: 369px;
    height: 419px;
    max-width: 100%;
    border-radius: 19px;
    border: 1px solid rgba(157, 183, 211, 1);
    box-shadow: 0px 6px 11.7px 0px rgba(41, 129, 226, 0.32);
    overflow: hidden;
}
.section-9 .s9-for-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}
.section-9 .s9-for-card::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180.11deg, rgba(66, 107, 166, 0) 42.97%, #003787 85.95%);
}
.section-9 .s9-for-cap {
    position: absolute;
    left: 50%;
    bottom: 16px;
    transform: translateX(-50%);
    z-index: 2;
    width: 343px;
    max-width: calc(100% - 26px);
    min-height: 162px;
    padding: 18px 22px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-radius: 13px;
    background: rgba(0, 59, 147, 0.7);
    border: 1px solid rgba(114, 172, 222, 1);
}
.section-9 .s9-for-cap-title {
    margin: 0 0 8px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 700;
    font-size: 24px;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: rgba(255, 255, 255, 1);
}
.section-9 .s9-for-cap-desc {
    margin: 0;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 500;
    font-size: 18px;
    line-height: 24px;
    letter-spacing: -0.01em;
    color: rgba(255, 255, 255, 1);
}
/* "không dành cho ai" */
.section-9 .s9-not-grid {
    display: grid;
    grid-template-columns: repeat(2, 534px);
    justify-content: center;
    gap: 30px 100px;
    align-items: stretch;
}
.section-9 .s9-not-head {
    display: flex;
    align-items: center;
    gap: 16px;
}
.section-9 .s9-not-x {
    flex-shrink: 0;
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: radial-gradient(circle at 50% 35%, #FF4438 0%, #E1261C 60%, #B5140C 100%);
    border: 3px solid #fff;
    box-shadow: 0 4px 12px rgba(225, 38, 28, 0.55), 0 0 0 2px rgba(225, 38, 28, 0.25);
    color: #fff;
    font-size: 22px;
    font-weight: 800;
    line-height: 1;
}
.section-9 .s9-not-title {
    margin: 0;
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: 40px;
    line-height: 1.25;
    text-transform: uppercase;
    background: linear-gradient(360deg, #00285A 0%, #0055C0 79.51%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.section-9 .s9-not-item {
    position: relative;
    display: flex;
    align-items: center;
    width: 534px;
    max-width: 100%;
    height: 167px;
    padding: 16px 20px 16px 70px;
    border-radius: 14px;
    background: #fff;
    border: 1px solid #cdddf0;
    box-shadow: 0px 6px 14px rgba(41, 129, 226, 0.12);
}
.section-9 .s9-not-icon {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translate(-39%, -50%);
    width: auto;
    height: 97px;
    object-fit: contain;
}
.section-9 .s9-not-text {
    margin: 0;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 500;
    font-size: 18px;
    line-height: 24px;
    letter-spacing: -0.01em;
    text-align: justify;
    color: rgba(0, 40, 90, 1);
}
@media (max-width: 991px) {
    .section-9 .s9-not-grid { grid-template-columns: 1fr; gap: 18px; }
    .section-9 .s9-not-title { font-size: 30px; }
}
@media (max-width: 767px) {
    .section-9 { padding: 44px 0; }
    .section-9 .s9-title { font-size: 26px; }
    .section-9 .s9-title-br-mb { display: inline; }
    .section-9 .s9-not-title { font-size: 24px; }
    .section-9 .s9-not-text { font-size: 16px; line-height: 22px; }
    /* item 338x170, icon lồi giữa cạnh trái như PC */
    .section-9 { overflow-x: hidden; }
    .section-9 .s9-not-grid { justify-items: center; }
    .section-9 .s9-not-item {
        width: 338px;
        max-width: 100%;
        height: 170px;
        padding: 16px 18px 16px 70px;
    }
    .section-9 .s9-not-icon {
        height: 68px;
        left: 0;
        transform: translate(-31%, -50%);
    }
}

/* ====== SECTION 10: NỘI DUNG KHÓA HỌC (copy s3 khoa-hoc-mo-hinh-kinh-doanh) ====== */
.s3 {
    position: relative;
    overflow: hidden;
}
.s3 .s3-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}
.s3 > .container {
    position: relative;
    z-index: 1;
}
.s3 .s3-title-img {
    max-width: 500px;
    height: auto;
}
.s3 .s3-part {
    max-width: 1140px;
    margin-left: auto;
    margin-right: auto;
}
.s3 .s3-part-header {
    font-family: "Inter-Bold", sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #00285a;
    text-transform: uppercase;
    padding: 0.75rem 1.5rem;
    background:
        linear-gradient(87.36deg, #FFFFFF 0.52%, #FBFBFB 26.25%, #EFEFEF 50%, #DCDCDC 73.75%, #C1C1C1 97.5%, #BFBFBF 99.48%) padding-box,
        linear-gradient(86.97deg, #BFBFBF 0.61%, #C1C1C1 2.59%, #DCDCDC 26.29%, #EFEFEF 50%, #FBFBFB 73.71%, #FFFFFF 99.39%) border-box;
    border: 1px solid transparent;
    border-radius: 8px;
}
.s3 .s3-part-body {
    margin-top: 12px;
    padding: 1rem 0 0.5rem;
    border-radius: 20px;
    position: relative;
    min-height: 176px;
}
.s3 .s3-part-body > .row {
    margin: -8px;
}
.s3 .s3-part-body > .row > [class*="col-"] {
    padding: 8px;
    margin-bottom: 0;
}
.s3 .s3-module {
    background: rgba(25, 70, 118, 0.6);
    border-radius: 12px;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
}
.s3 .s3-module::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1.54px;
    background: linear-gradient(25.83deg, #FFFFFF 13.82%, #F7FCFF 16.75%, #E3F4FF 19.68%, #C3E8FF 23.6%, #95D7FF 28.49%, #5BC1FF 33.38%, #7DCEFF 36.31%, #B4E2FF 41.2%, #DDF2FF 46.09%, #F5FBFF 49.02%, #FFFFFF 51.96%, #F8FCFF 53.91%, #E6F5FF 57.82%, #C9EAFF 61.74%, #A0DBFF 66.62%, #6CC7FF 71.51%, #5BC1FF 73.47%, #7DCEFF 76.4%, #B4E2FF 82.27%, #DDF2FF 87.16%, #F5FBFF 91.07%, #FFFFFF 93.03%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 2;
}
.s3 .s3-module-header {
    background: rgba(4, 43, 85, 1);
    color: #fff;
    font-family: "Inter-Bold", sans-serif;
    font-weight: 700;
    font-size: 20.7px;
    line-height: 28.23px;
    letter-spacing: 0;
    text-align: justify;
    padding: 14px 18px;
}
.s3 .s3-module-body {
    padding: 14px 18px 8px;
    flex: 1;
}
.s3 .s3-module-body ul {
    list-style: disc;
    padding-left: 1.1rem;
    margin-bottom: 0;
}
.s3 .s3-module-body ul li {
    color: rgba(255, 255, 255, 1);
    font-family: "Inter-Regular", sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 4px;
}
.s3 .s1-cta-btn {
    display: inline-block;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}
.s3 .s1-cta-btn img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}
.s3 .s1-cta-btn:hover {
    transform: translateY(-2px);
}
@media (max-width: 767px) {
    .s3 .s3-title-img { max-width: 100%; }
    .s3 .s3-part-header { font-size: 0.95rem; padding: 0.5rem 1rem; }
    .s3 .s3-part-body { min-height: auto; padding: 0.75rem 0 0.5rem; }
    .s3 .s3-module-header { font-size: 15px; line-height: 1.35; padding: 10px 12px; }
    .s3 .s3-module-body { padding: 10px 12px 4px; }
    .s3 .s3-module-body ul li { font-size: 0.9rem; line-height: 1.5; }
}

/* ====== SECTION 11: 2 NGÀY THAY ĐỔI MỘT HÀNH TRÌNH (Trước / Sau) ====== */
.section-11 {
    position: relative;
    overflow: hidden;
    padding: 70px 0;
}
.section-11 .s11-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.section-11 > .container {
    position: relative;
    z-index: 1;
}
.section-11 .s11-title-img {
    max-width: 100%;
    height: auto;
    margin: 0 auto 40px;
}
.section-11 .s11-title-img--mobile {
    display: none;
}
@media (max-width: 767px) {
    .section-11 .s11-title-img--desktop { display: none; }
    .section-11 .s11-title-img--mobile { display: inline-block; }
}
.section-11 .s11-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.section-11 .s11-card {
    display: flex;
    width: 853px;
    max-width: 100%;
    min-height: 77px;
    border-radius: 14px;
    overflow: hidden;
    background: linear-gradient(109.35deg, #FFFFFF 13.69%, #F7FCFF 18.6%, #E3F4FF 26.45%, #CAEBFF 33.32%, #DDF2FF 38.23%, #F5FBFF 47.06%, #FFFFFF 51.96%, #F8FCFF 57.85%, #E6F6FF 65.7%, #D1EEFF 73.55%, #DDF2FF 77.48%, #F5FBFF 87.29%, #FFFFFF 93.18%);
}
.section-11 .s11-col {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 12px 28px;
}
.section-11 .s11-col + .s11-col {
    border-left: 0.5px solid rgba(0, 0, 0, 1);
}
.section-11 .s11-label {
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 800;
    font-size: 20px;
    line-height: 21px;
    text-transform: uppercase;
    color: rgba(237, 28, 36, 1);
    margin-bottom: 4px;
}
.section-11 .s11-text {
    margin: 0;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 700;
    font-size: 16px;
    line-height: 21px;
    color: rgba(0, 40, 90, 1);
}
@media (max-width: 575px) {
    .section-11 { padding: 44px 0; }
    .section-11 .s11-col { padding: 10px 16px; }
    .section-11 .s11-label { font-size: 16px; }
    .section-11 .s11-text { font-size: 14px; line-height: 19px; }
}

/* ====== SECTION 12: ẢNH FULL (copy section-10 sinh-loi) ====== */
.performance-marketing-profit-system .section-12 {
    line-height: 0;
}
.performance-marketing-profit-system .section-12 .s12-img {
    width: 100%;
    height: auto;
    display: block;
}
.performance-marketing-profit-system .section-12 .s12-img--mobile {
    display: none;
}
@media (max-width: 767px) {
    .performance-marketing-profit-system .section-12 .s12-img--desktop { display: none; }
    .performance-marketing-profit-system .section-12 .s12-img--mobile { display: block; }
}

/* ====== SECTION 13: LỊCH KHAI GIẢNG ====== */
.section-13 {
    position: relative;
    overflow: hidden;
    padding: 60px 0 70px;
}
.section-13 .s13-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.section-13 > .container {
    position: relative;
    z-index: 1;
}
.section-13 .s13-title-img {
    max-width: 100%;
    height: auto;
    margin: 0 auto 32px;
}
.section-13 .s13-title-img--mobile {
    display: none;
}
.section-13 .s13-card {
    position: relative;
    width: 100%;
    max-width: 1051px;
    margin: 0 auto;
    border-radius: 16px;
    overflow: hidden;
}
.section-13 .s13-card-bg {
    display: block;
    width: 100%;
    height: auto;
}
.section-13 .s13-card-bg--mobile {
    display: none;
}
.section-13 .s13-info {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1;
}
.section-13 .s13-info {
    width: 46%;
    padding: 0 6% 0 7%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
}
.section-13 .s13-row {
    display: flex;
    align-items: center;
    gap: 16px;
}
.section-13 .s13-ic {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #fff;
}
.section-13 .s13-label {
    display: block;
    margin-bottom: 8px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 700;
    font-size: 16px;
    line-height: 1.1;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: rgba(189, 220, 255, 1);
}
.section-13 .s13-pill {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 3px;
    background: rgba(42, 100, 147, 0.7);
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 700;
    font-size: 24px;
    line-height: 24px;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 1);
}
.section-13 .s13-sub {
    display: block;
    margin-top: 2px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 500;
    font-size: 13px;
    line-height: 1.2;
    text-transform: none;
    color: rgba(225, 238, 255, 0.85);
}
.section-13 .s13-photo {
    flex: 1 1 0;
    min-width: 0;
}
.section-13 .s13-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
@media (max-width: 767px) {
    .section-13 .s13-title-img--desktop { display: none; }
    .section-13 .s13-title-img--mobile { display: inline-block; }
    .section-13 .s13-card-bg--desktop { display: none; }
    .section-13 .s13-card-bg--mobile { display: block; }
    .section-13 .s13-info {
        top: 22px;
        bottom: auto;
        left: 50%;
        transform: translateX(-50%);
        width: max-content;
        max-width: 90%;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        gap: 18px;
        padding: 0;
    }
}
@media (max-width: 575px) {
    .section-13 { padding: 40px 0 48px; }
    .section-13 .s13-ic { width: 44px; height: 44px; }
    .section-13 .s13-ic svg { width: 20px; height: 20px; }
    .section-13 .s13-label { font-size: 14px; margin-bottom: 5px; }
    .section-13 .s13-pill { font-size: 18px; padding: 4px 12px; }
    .section-13 .s13-sub { font-size: 12px; }
    .section-13 .s13-info { gap: 16px; }
}

/* ====== SECTION 14: BANNER 9 SÁCH (copy s8-banner khoa-hoc-mo-hinh-kinh-doanh) ====== */
.s8-banner {
    position: relative;
}
.s8-banner-img {
    width: 100%;
    display: block;
}
.s8-banner-img-mb {
    width: 100%;
    display: none;
}
.s8-banner-link-mb {
    display: none;
}
.s8-cta-btn {
    display: inline-block;
    background: linear-gradient(90deg, #CF2027 0%, #7C1317 100%);
    border-radius: 8px;
    color: rgba(255, 255, 255, 1);
    font-family: "Inter-Bold", sans-serif;
    font-size: 1.1875rem;
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    padding: 0.75rem 2rem;
    position: absolute;
    bottom: 5%;
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.3s ease;
}
.s8-cta-btn:hover {
    color: #fff;
    opacity: 0.9;
}
@media (max-width: 767px) {
    .s8-banner-img { display: none; }
    .s8-banner-link-mb { display: block; }
    .s8-banner-img-mb { display: block; }
    .s8-cta-btn { display: none; }
}

/* ====== SECTION 15: ĐỐI TÁC TÀI TRỢ / FEEDBACK (copy section-13 sinh-loi) ====== */
.section-15 {
    position: relative;
    overflow: hidden;
    min-height: 1388px;
    padding: 90px 0 80px;
    background: #0D1B40;
}
.section-15 .s15-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.section-15 > .container {
    position: relative;
    z-index: 1;
}
.section-15 .s15-title {
    margin: 0 0 18px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 800;
    font-size: 50px;
    line-height: 1.3;
    text-align: center;
    text-transform: uppercase;
    filter: drop-shadow(0px 5.97px 5.97px rgba(0, 0, 0, 0.25));
    background: linear-gradient(360deg, #86E2FF 12.66%, #FFFFFF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.section-15 .s15-title span { display: block; }
.section-15 .s15-subtitle {
    margin: 0 0 64px;
    color: #fff;
    font-weight: 600;
    font-style: italic;
    font-size: 25px;
    line-height: 1.5;
    text-align: center;
}
.section-15 .s15-feedback-title {
    margin: 0 0 36px;
    font-family: 'Reddit Sans', sans-serif;
    font-weight: 800;
    font-size: 34px;
    line-height: 1.3;
    text-align: center;
    text-transform: uppercase;
    filter: drop-shadow(0px 4px 4px rgba(0, 0, 0, 0.25));
    background: linear-gradient(360deg, #86E2FF 12.66%, #FFFFFF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.section-15 .s15-stories {
    max-width: 1100px;
    margin: 0 auto;
}
.section-15 .s15-story { padding: 0 8px; }
.section-15 .s15-story-wrap {
    position: relative;
    cursor: pointer;
    border-radius: 12px;
    overflow: hidden;
}
.section-15 .s15-story-thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    height: auto;
    object-fit: cover;
    display: block;
    background: #0a2c6b;
}
.section-15 .s15-story-wrap .s15-story-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    object-fit: contain;
    transition: transform 0.2s ease;
}
.section-15 .s15-story-wrap:hover .s15-story-play {
    transform: translate(-50%, -50%) scale(1.1);
}
.section-15 .s15-cta {
    display: block;
    margin: 40px auto 0;
    width: fit-content;
    line-height: 0;
    transition: transform 0.2s ease;
}
.section-15 .s15-cta:hover { transform: translateY(-3px); }
.section-15 .s15-cta img {
    max-width: 100%;
    height: auto;
    display: block;
}
.section-15 .s15-bottom-mb {
    display: none;
}
@media (max-width: 991px) {
    .section-15 { min-height: 0; padding-bottom: 0; }
    .section-15 .s15-bg { display: none; }
    .section-15 .s15-bottom-mb {
        display: block;
        width: 100vw;
        max-width: 100vw;
        height: auto;
        margin: 28px 0 0;
        margin-left: calc(-50vw + 50%);
    }
}
@media (max-width: 767px) {
    .section-15 { padding: 48px 0 0; }
    .section-15 .s15-title { font-size: 26px; }
    .section-15 .s15-subtitle { font-size: 16px; margin-bottom: 36px; }
    .section-15 .s15-feedback-title { font-size: 24px; }
}

/* ====== POPUP VIDEO (widget.playVideo → .simple-overlay) ====== */
.simple-overlay {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.85);
}
.simple-overlay .popup-container {
    position: relative;
    width: min(900px, 94vw);
}
.simple-overlay .popup-content,
.simple-overlay .popup-content .text-center {
    width: 100%;
}
.simple-overlay .popup-content iframe {
    width: 100%;
    max-width: 100%;
    aspect-ratio: 16 / 9;
    height: auto;
    border: 0;
    border-radius: 8px;
    display: block;
}
.simple-overlay .btn-close {
    position: absolute;
    top: -44px;
    right: 0;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #fff;
    border: 0;
    opacity: 1;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M.293.293a1 1 0 0 1 1.414 0L8 6.586 14.293.293a1 1 0 1 1 1.414 1.414L9.414 8l6.293 6.293a1 1 0 0 1-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 0 1-1.414-1.414L6.586 8 .293 1.707a1 1 0 0 1 0-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 16px;
}

/* ---------- (cũ) SECTION GIẢI PHÁP / NỘI DUNG placeholder ---------- */
.box_info { padding: 70px 0; background: #f4f7fc; }
.box_info_top {
    font-size: 26px; font-weight: 800; color: var(--hbr-blue);
    margin-bottom: 30px;
}
.box_info_subtitle {
    background: var(--hbr-red);
    display: inline-block;
    padding: 8px 18px; border-radius: 40px;
    font-size: 15px; font-weight: 600; margin-top: 16px;
}
.box_info_item {
    background: #fff; border-radius: 12px; overflow: hidden;
    margin-bottom: 20px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, .06);
}
.box_info_item_top {
    background: linear-gradient(90deg, var(--hbr-blue), var(--hbr-blue-2));
    color: #fff; font-weight: 800; font-size: 17px;
    padding: 16px 20px;
}
.box_info_item_main { padding: 20px 24px; }
.box_info_item_main ul { list-style: none; margin: 0; }
.box_info_item_main li {
    color: #1f2d3d; padding: 8px 0 8px 28px; line-height: 1.6;
    border-bottom: 1px dashed #e3e8f0;
}
.box_info_item_main li:last-child { border-bottom: 0; }
.box_info_item_main li::before {
    content: "\2713"; position: absolute; left: 0;
    color: var(--hbr-red); font-weight: 800;
}

/* ---------- SECTION 5: THÔNG TIN KHÓA ---------- */
.bg_course { padding: 70px 0; background: var(--hbr-blue); }
.course_top {
    font-size: 30px; font-weight: 800; color: #fff;
    margin-bottom: 36px;
}
.course_item { margin-bottom: 24px; }
.course_item img { border-radius: 12px; }
.course_item_top {
    top: 14px; left: 50%; transform: translateX(-50%);
    background: var(--hbr-red); padding: 8px 24px; border-radius: 40px;
    font-weight: 700;
}
.course_time_item {
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: 10px; padding: 16px; margin-bottom: 16px;
}

/* ---------- SECTION 6: DÀNH CHO AI ---------- */
.workshop-for-who { position: relative; padding: 70px 0; background: #f4f7fc; }
.workshop-for-who .wfw-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .06; }
.wfw-title { position: relative; font-size: 30px; font-weight: 800; color: var(--hbr-blue); margin-bottom: 40px; }
.wfw-row { position: relative; }
.wfw-col {
    background: #fff; border-radius: 14px; padding: 24px;
    height: 100%; box-shadow: 0 6px 18px rgba(0, 0, 0, .06);
}
.wfw-head { font-size: 18px; font-weight: 800; margin-bottom: 16px; }
.wfw-head--no { color: var(--hbr-red); }
.wfw-head--yes { color: #1aa260; }
.wfw-list { list-style: none; margin: 0; padding: 0; }
.wfw-list li { display: flex; gap: 12px; padding: 10px 0; line-height: 1.5; border-bottom: 1px dashed #eee; }
.wfw-ic { flex: 0 0 auto; font-weight: 800; }
.wfw-ic--no { color: var(--hbr-red); }
.wfw-ic--yes { color: #1aa260; }

/* ---------- SECTION 7: LỢI ÍCH / GIẢNG VIÊN / STORIES ---------- */
.box_loiIch { padding: 70px 0 0; background: var(--hbr-blue-2); }
.box_loiIch .title { font-size: 30px; font-weight: 800; margin-bottom: 36px; }
.box_loiIch .item_wp { margin-bottom: 20px; }
.box_loiIch .item {
    width: 100%; min-height: 110px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: 12px; padding: 18px;
}
.box_loiIch .item .text { color: #fff; font-size: 14px; line-height: 1.6; }

.box_dienGia { padding: 60px 0; background: var(--hbr-blue); }
.box_dienGia .box_speaker_top { font-size: 24px; font-weight: 800; color: var(--hbr-yellow); margin-bottom: 16px; }
.box_dienGia .box_speaker_top_mobile { display: none; }
.box_dienGia .title_1 { font-size: 30px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.box_dienGia .box_content ul { list-style: none; padding: 0; }
.box_dienGia .box_content li .item { color: #e8eefc; padding: 8px 0 8px 24px; position: relative; line-height: 1.6; }
.box_dienGia .box_content li .item::before { content: "\2022"; position: absolute; left: 0; color: var(--hbr-yellow); font-size: 20px; }
.diengia_city { position: absolute; bottom: 0; left: 0; z-index: 1; }

.box_hoptac { background: var(--hbr-red); }
.box_hoptac .title { font-size: 26px; font-weight: 800; }
.box_hoptac p { color: #fff; }
.box_hoptac button { background: #fff; border: 0; border-radius: 40px; font-weight: 700; }
.box_hoptac button a { color: var(--hbr-red); text-decoration: none; }

.box_student { padding: 60px 0; background: var(--hbr-blue-2); }
.box_student .title { font-size: 30px; font-weight: 800; color: #fff; text-align: center; margin-bottom: 36px; }
.box_student .video-wrapper { position: relative; cursor: pointer; }
.box_student .play-video { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); }

/* ---------- SECTION 8: QR ---------- */
.qr_code { padding: 60px 0; background: #f4f7fc; }
.qr_code_top { background: var(--hbr-blue); padding: 14px; border-radius: 10px 10px 0 0; font-weight: 800; }
.qr_code_main { background: #fff; padding: 30px; border-radius: 0 0 12px 12px; box-shadow: 0 6px 18px rgba(0, 0, 0, .06); }
.code_qr_left_top .text-white { color: var(--hbr-blue) !important; }
.code_qr_left_top p, .code_qr_left_top .code_qr_left_top_content { color: #1f2d3d !important; }

/* ---------- SECTION 9: HÌNH ẢNH ---------- */
.box_images { padding: 20px 0 60px; }
.box_images img { width: 100%; border-radius: 8px; margin-bottom: 16px; object-fit: cover; }

/* =========================================================
   SECTION 1 — Hero video + form (bê từ xay-dung-doi-ngu-marketing-sale-tu-van-hanh)
   ========================================================= */
@font-face {
    font-family: 'Inter';
    src: url('../../../../fonts/Inter/static/Inter-Regular.woff2') format('woff2'),
         url('../../../../fonts/Inter/static/Inter-Regular.ttf') format('truetype');
    font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../../../../fonts/Inter/static/Inter-Medium.woff2') format('woff2'),
         url('../../../../fonts/Inter/static/Inter-Medium.ttf') format('truetype');
    font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../../../../fonts/Inter/static/Inter-SemiBold.woff2') format('woff2'),
         url('../../../../fonts/Inter/static/Inter-SemiBold.ttf') format('truetype');
    font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../../../../fonts/Inter/static/Inter-Bold.woff2') format('woff2'),
         url('../../../../fonts/Inter/static/Inter-Bold.ttf') format('truetype');
    font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../../../../fonts/Inter/static/Inter-ExtraBold.ttf') format('truetype');
    font-weight: 800; font-style: normal; font-display: swap;
}

.performance-marketing-profit-system {
    font-family: 'Inter', sans-serif;
}
.performance-marketing-profit-system [class^="section-"] {
    position: relative;
}
.performance-marketing-profit-system [class^="section-"] > .container {
    position: relative;
    z-index: 1;
}
.performance-marketing-profit-system .s1-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
}
.performance-marketing-profit-system .section-1 {
    overflow: hidden;
}
.performance-marketing-profit-system .section-1 .s1-video-form-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 145px;
    padding: 60px 0;
}
.performance-marketing-profit-system .section-1 .s1-video-wrapper {
    width: 656px;
    height: 371px;
    flex-shrink: 0;
}
.performance-marketing-profit-system .section-1 .s1-video-wrapper iframe {
    width: 100%;
    height: 100%;
    border: 0;
}
.performance-marketing-profit-system .section-1 .s1-form-wrapper {
    flex-shrink: 0;
    width: 497px;
}
.performance-marketing-profit-system .section-1 .enroll-box {
    position: relative;
    padding: 32px 28px;
}
.performance-marketing-profit-system .section-1 .enroll-box-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: fill;
    z-index: 0;
    pointer-events: none;
}
.performance-marketing-profit-system .section-1 .enroll-box > *:not(.enroll-box-bg) {
    position: relative;
    z-index: 1;
}
.performance-marketing-profit-system .section-1 .enroll-box-title {
    text-align: center;
    font-weight: 700;
    color: rgba(255, 255, 255, 1);
    margin-bottom: 16px;
}
.performance-marketing-profit-system .section-1 .s1-form-fields {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.performance-marketing-profit-system .section-1 .s1-form-inline {
    display: flex;
    gap: 12px;
}
.performance-marketing-profit-system .section-1 .s1-form-inline > .s1-form-input {
    flex: 1 1 0;
    min-width: 0;
}
.performance-marketing-profit-system .section-1 .s1-form-input {
    width: 100%;
    padding: 10px 16px;
    border: 1px solid #4aa3ff;
    border-radius: 999px;
    background: #fff;
    outline: none;
}
.performance-marketing-profit-system .section-1 .s1-form-input:focus {
    border-color: #0a3d8f;
}
.performance-marketing-profit-system .section-1 select.s1-form-input {
    cursor: pointer;
    color: #333;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%234aa3ff' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 38px;
}
.performance-marketing-profit-system .section-1 select.s1-form-input:invalid {
    color: #757575;
}
.performance-marketing-profit-system .section-1 .s1-submit-btn {
    margin-top: 18px;
    border: 0;
    background: linear-gradient(5.9deg, #FFFFFF -41.03%, #9E0000 -31.11%, #FF3030 117.64%);
    filter: drop-shadow(0px 4px 15px rgba(215, 0, 0, 0.65));
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    width: 243px;
    height: 46px;
    padding: 0;
    line-height: 46px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    cursor: pointer;
    transition: transform 0.3s ease, filter 0.3s ease;
    clip-path: polygon(10% 0%, 90% 0%, 100% 50%, 90% 100%, 10% 100%, 0% 50%);
}
.performance-marketing-profit-system .section-1 .s1-submit-btn:hover {
    transform: translateY(-2px);
    filter: drop-shadow(0px 6px 18px rgba(215, 0, 0, 0.8)) brightness(1.05);
}
.performance-marketing-profit-system .section-1 .s1-submit-btn:active {
    transform: translateY(0);
}

@media (max-width: 1199px) {
    .performance-marketing-profit-system .section-1 .s1-video-form-row { gap: 60px; }
}
@media (max-width: 991px) {
    .performance-marketing-profit-system .section-1 .s1-video-form-row {
        flex-direction: column;
        gap: 32px;
        padding: 40px 0;
    }
    .performance-marketing-profit-system .section-1 .s1-video-wrapper {
        width: 100%;
        max-width: 656px;
        height: auto;
        aspect-ratio: 656 / 371;
    }
    .performance-marketing-profit-system .section-1 .s1-form-wrapper { width: 100%; max-width: 480px; }
}
@media (max-width: 575px) {
    .performance-marketing-profit-system .section-1 .enroll-box { padding: 24px 18px; }
    .performance-marketing-profit-system .section-1 .s1-submit-btn { width: 100%; max-width: 243px; }
}

/* Font tiêu đề section-2 */
@font-face {
    font-family: 'SVN-Bebas Neue';
    src: url('../../../../fonts/SVN-BEBAS-NEUE-BOLD.woff2') format('woff2'),
         url('../../../../fonts/SVN-BEBAS-NEUE-BOLD.woff') format('woff'),
         url('../../../../fonts/SVN-BEBAS-NEUE-BOLD.otf') format('opentype');
    font-weight: 700; font-style: normal; font-display: swap;
}