/* ============================================================
   SCDN — Product Page Stylesheet (scoped to body.page-scdn)
   ============================================================ */
body.page-scdn{
    --scdn-blue: #2b78f6;
    --scdn-cyan: #22d0ff;
    --scdn-deep: #0a1a3a;
    --scdn-text: #253554;
    --scdn-text-light: #5b78a0;
    --scdn-text-muted: #727489;
    --scdn-bg-soft: #f4faff;
    --scdn-grad: linear-gradient(135deg, #2b78f6 0%, #22d0ff 100%);
    --scdn-grad-rev: linear-gradient(135deg, #22d0ff 0%, #2b78f6 100%);
    --scdn-card-shadow: 0 25px 60px -25px rgba(43, 120, 246, .25);

    overflow-x: hidden;
}
body.page-scdn *{ box-sizing: border-box; }
.page-scdn .m12{ width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ============================================================
   1. Banner
   ============================================================ */
.page-scdn .banner_dy{
    position: relative;
    width: 100%;
    min-height: 540px;
    overflow: hidden;
    background-color: #06122e;
    color: #fff;
    isolation: isolate;
    display: flex;
    align-items: center;
}
/* Background image as its own layer so we can animate independently */
.banner_dy_bg{
    position: absolute;
    inset: -4%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
    animation: scdnBgDrift 24s ease-in-out infinite alternate;
    will-change: transform;
}
@keyframes scdnBgDrift{
    0%   { transform: scale(1.04) translate(0, 0); }
    50%  { transform: scale(1.08) translate(-1.5%, -.8%); }
    100% { transform: scale(1.05) translate(1%, .5%); }
}
.banner_dy_mask{
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(6,18,46,.92) 0%, rgba(6,18,46,.65) 55%, rgba(6,18,46,.4) 100%),
        linear-gradient(180deg, rgba(6,18,46,.3) 0%, rgba(6,18,46,.7) 100%);
    z-index: 1;
}
.banner_dy_grid{
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(34,208,255,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34,208,255,.06) 1px, transparent 1px);
    background-size: 44px 44px;
    animation: scdnGridMove 30s linear infinite;
    z-index: 2;
    pointer-events: none;
}
@keyframes scdnGridMove{
    0%   { background-position: 0 0, 0 0; }
    100% { background-position: 44px 44px, 44px 44px; }
}
.banner_dy_orb{
    position: absolute;
    width: 620px;
    height: 620px;
    right: -180px;
    top: -180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34,208,255,.3), transparent 60%);
    filter: blur(40px);
    z-index: 2;
    animation: scdnOrbFloat 14s ease-in-out infinite;
    pointer-events: none;
}
.banner_dy_orb2{
    width: 480px; height: 480px;
    right: auto; top: auto;
    left: 35%; bottom: -180px;
    background: radial-gradient(circle, rgba(43,120,246,.28), transparent 60%);
    animation-duration: 18s;
    animation-direction: reverse;
}
@keyframes scdnOrbFloat{
    0%, 100% { transform: translate(0, 0); }
    50%      { transform: translate(-60px, 40px); }
}

/* Diagonal scanning beam */
.banner_dy_scan{
    position: absolute;
    inset: 0;
    z-index: 3;
    overflow: hidden;
    pointer-events: none;
}
.banner_dy_scan::before{
    content: "";
    position: absolute;
    top: -50%;
    left: -30%;
    width: 60%;
    height: 200%;
    background: linear-gradient(
        110deg,
        transparent 30%,
        rgba(34,208,255,.06) 45%,
        rgba(34,208,255,.18) 50%,
        rgba(34,208,255,.06) 55%,
        transparent 70%
    );
    transform: rotate(8deg);
    animation: scdnScanMove 7s ease-in-out infinite;
}
@keyframes scdnScanMove{
    0%   { transform: translateX(-30%) rotate(8deg); opacity: 0; }
    20%  { opacity: 1; }
    80%  { opacity: 1; }
    100% { transform: translateX(220%) rotate(8deg); opacity: 0; }
}

/* SVG network nodes overlay on right */
.banner_dy_net{
    position: absolute;
    right: 0;
    top: 0;
    width: 55%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
    opacity: .9;
}
.banner_dy_net .net_lines line{
    stroke-dasharray: 6 6;
    animation: scdnDash 6s linear infinite;
}
.banner_dy_net .net_lines line:nth-child(2){ animation-duration: 8s; animation-direction: reverse; }
.banner_dy_net .net_lines line:nth-child(3){ animation-duration: 10s; }
.banner_dy_net .net_lines line:nth-child(4){ animation-duration: 7s; animation-direction: reverse; }
.banner_dy_net .net_lines line:nth-child(5){ animation-duration: 9s; }
@keyframes scdnDash{
    to { stroke-dashoffset: -120; }
}
.banner_dy_net .net_nodes circle{
    filter: drop-shadow(0 0 8px currentColor);
    transform-origin: center;
    transform-box: fill-box;
    animation: scdnNodePulse 2.4s ease-in-out infinite;
}
.banner_dy_net .net_nodes circle:nth-child(1){ animation-delay: .0s; }
.banner_dy_net .net_nodes circle:nth-child(2){ animation-delay: .4s; }
.banner_dy_net .net_nodes circle:nth-child(3){ animation-delay: .8s; }
.banner_dy_net .net_nodes circle:nth-child(4){ animation-delay: 1.2s; }
.banner_dy_net .net_nodes circle:nth-child(5){ animation-delay: 1.6s; }
@keyframes scdnNodePulse{
    0%, 100% { transform: scale(1); opacity: .9; }
    50%      { transform: scale(1.6); opacity: 1; }
}

.page-scdn .banner_dy .m12{
    position: relative;
    z-index: 5;
}
.page-scdn .ban_cont3{
    display: flex;
    align-items: center;
    justify-content: flex-start;
    min-height: 540px;
    padding: 80px 24px;
}
.page-scdn .ban_cont1_left{
    max-width: 640px;
    width: 100%;
}
.page-scdn .ban_badge{
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 18px;
    border-radius: 999px;
    background: rgba(255,255,255,.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,.18);
    font-size: 12px;
    letter-spacing: 4px;
    color: rgba(255,255,255,.85);
    margin-bottom: 28px;
    font-weight: 500;
}
.page-scdn .ban_badge::before{
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--scdn-cyan);
    box-shadow: 0 0 12px rgba(34,208,255,.85);
    animation: scdnPulse 1.8s ease-in-out infinite;
}
@keyframes scdnPulse{
    0%, 100% { opacity: .55; transform: scale(1); }
    50%      { opacity: 1;   transform: scale(1.45); }
}
.page-scdn .ban_title{
    display: block;
    font-size: clamp(34px, 4.4vw, 56px);
    font-weight: 700;
    line-height: 1.18;
    margin: 0 0 22px;
    background: linear-gradient(135deg, #ffffff 0%, #d3e6ff 60%, #22d0ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -.5px;
    font-family: PingFang SC, Microsoft YaHei, Inter, sans-serif;
}
.page-scdn .ban_left_p{
    font-size: clamp(15px, 1.2vw, 18px);
    line-height: 1.75;
    color: rgba(255,255,255,.78);
    margin: 0 0 36px;
    max-width: 600px;
}
.page-scdn .ban_btnbox{
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}
.page-scdn .btn_public{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 30px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    letter-spacing: .5px;
    transition: transform .35s cubic-bezier(.2,.8,.2,1), background .35s ease, box-shadow .35s ease, border-color .35s ease;
    border: 1px solid transparent;
    cursor: pointer;
    line-height: 1.4;
}
.page-scdn .ban_btn1{
    background: var(--scdn-grad);
    color: #fff;
    box-shadow: 0 16px 35px -10px rgba(43,120,246,.55);
}
.page-scdn .ban_btn1:hover{
    transform: translateY(-3px);
    box-shadow: 0 22px 45px -10px rgba(34,208,255,.6);
}
.page-scdn .ban_btn3{
    background: rgba(255,255,255,.1);
    color: #fff;
    border-color: rgba(255,255,255,.25);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.page-scdn .ban_btn3:hover{
    background: rgba(255,255,255,.18);
    border-color: rgba(34,208,255,.5);
    transform: translateY(-3px);
}
.page-scdn .ban_btn_help{
    background: transparent;
    color: rgba(255,255,255,.85);
    border-color: rgba(255,255,255,.3);
}
.page-scdn .ban_btn_help:hover{
    background: rgba(255,255,255,.06);
    color: #fff;
    border-color: rgba(255,255,255,.5);
    transform: translateY(-3px);
}

/* ============================================================
   2. mod1 — Product Features Grid (glassmorphic cards)
   ============================================================ */
.page-scdn .mod1{
    text-align: center;
    width: 100%;
    padding: 110px 0;
    height: auto;
    background:
        linear-gradient(180deg, rgba(244,250,255,.6) 0%, rgba(255,255,255,.95) 100%),
        url("/style/img/scdn_mod1_bg.png") center/cover no-repeat;
    position: relative;
    overflow: hidden;
}
.page-scdn .mod1::before{
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(43,120,246,.08), transparent 70%);
    right: -200px;
    top: 100px;
    filter: blur(60px);
    pointer-events: none;
}
.page-scdn .mod1 .first_title,
.page-scdn .mod2 .first_title,
.page-scdn .mod3 .first_title{
    font-size: clamp(28px, 3.2vw, 42px);
    font-weight: 700;
    background: linear-gradient(135deg, #0a1a3a 0%, #2b78f6 90%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 0;
    line-height: 1.3;
    display: block;
    text-align: center;
    font-family: PingFang SC, Microsoft YaHei, Inter, sans-serif;
}
.page-scdn .mod1 .first_title::after,
.page-scdn .mod2 .first_title::after,
.page-scdn .mod3 .first_title::after{
    content: "";
    display: block;
    width: 70px;
    height: 4px;
    background: var(--scdn-grad);
    border-radius: 2px;
    margin: 18px auto 0;
    box-shadow: 0 6px 14px -3px rgba(43,120,246,.4);
}

.page-scdn .mod1_list{
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 60px;
    padding: 0;
    list-style: none;
}
.page-scdn .mod1_list li{
    display: flex;
    height: auto;
    min-height: 180px;
    align-items: stretch;
    gap: 24px;
    width: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
}
.page-scdn .mod1_list_pub{
    display: flex;
    padding: 32px;
    flex-direction: column;
    gap: 10px;
    flex: 1 1 0;
    min-width: 0;
    border: 1px solid rgba(255,255,255,.7);
    background: linear-gradient(135deg, rgba(255,255,255,.85) 0%, rgba(243,250,255,.7) 100%);
    box-shadow: 0 20px 40px -20px rgba(43,120,246,.18);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 18px;
    transition: transform .45s cubic-bezier(.2,.8,.2,1), box-shadow .45s ease, border-color .45s ease, background .45s ease;
    position: relative;
    overflow: hidden;
}
.page-scdn .mod1_list_pub::before{
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 0%;
    height: 3px;
    background: var(--scdn-grad);
    transition: width .5s ease;
    z-index: 2;
}
.page-scdn .mod1_list_pub:hover{
    transform: translateY(-8px);
    border-color: rgba(34,208,255,.4);
    box-shadow: 0 35px 70px -20px rgba(43,120,246,.35);
    background: linear-gradient(135deg, rgba(255,255,255,.95) 0%, rgba(229,243,255,.9) 100%);
}
.page-scdn .mod1_list_pub:hover::before{
    width: 100%;
}
.page-scdn .mod1_listtext{
    display: flex;
    align-items: flex-start;
    gap: 22px;
    width: 100%;
}
.page-scdn .mod1_listtext svg{
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    transition: transform .45s ease;
}
.page-scdn .mod1_list_pub:hover .mod1_listtext svg{
    transform: scale(1.08) rotate(-3deg);
}
.page-scdn .mod1_listtext dl{
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    flex: 1 1 0;
    min-width: 0;
    margin: 0;
}
.page-scdn .mod1_listtext dl dt{
    color: var(--scdn-text);
    font-family: PingFang SC, Microsoft YaHei, sans-serif;
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
    margin: 0;
}
.page-scdn .mod1_listtext dl dd{
    color: var(--scdn-text-light);
    text-align: justify;
    font-family: PingFang SC, Microsoft YaHei, sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.7;
    margin: 0;
}

/* ============================================================
   3. mod2 — Vertical Timeline (SuperSlide accordion)
   ============================================================ */
.page-scdn .mod2{
    background: linear-gradient(180deg, #f9fbff 62%, rgba(249,251,255,0) 100%);
    text-align: center;
    padding: 110px 0;
    position: relative;
    overflow: hidden;
}
.page-scdn .mod2::before{
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34,208,255,.08), transparent 70%);
    left: -200px;
    bottom: 0;
    filter: blur(60px);
    pointer-events: none;
}
.page-scdn .mod2_contbox{
    width: 100%;
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 40px;
    margin-top: 60px;
}
.page-scdn .mod2_border{
    margin-left: 0;
    width: 4px;
    min-height: 600px;
    flex-shrink: 0;
    background: linear-gradient(180deg, rgba(34,208,255,0), rgba(43,120,246,.5) 30%, rgba(34,208,255,.5) 70%, rgba(34,208,255,0));
    border-radius: 2px;
    align-self: stretch;
    position: relative;
}
.page-scdn .mod2_list{
    position: static;
    flex: 1 1 0;
    min-width: 0;
    text-align: left;
    padding: 20px 0 0;
}
.page-scdn .mod2_title{
    margin-top: 0;
    margin-bottom: 18px;
    display: flex;
    cursor: pointer;
    align-items: center;
    justify-content: flex-start;
    gap: 24px;
    color: var(--scdn-text-light);
    font-family: PingFang SC, Microsoft YaHei, sans-serif;
    font-size: 22px;
    font-weight: 600;
    line-height: 1.4;
    padding: 12px 0;
    transition: color .35s ease, transform .35s ease;
    position: relative;
}
.page-scdn .mod2_title:hover{
    color: var(--scdn-blue);
    transform: translateX(4px);
}
.page-scdn .mod2_svg{
    background: linear-gradient(135deg, #8aa1c0, #6f8cab);
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .4s ease;
    box-shadow: 0 4px 12px -4px rgba(91, 120, 160, .4);
    position: relative;
}
.page-scdn .mod2_svg svg{
    width: 22px;
    height: 22px;
    transition: transform .4s ease;
}

/* Active state (SuperSlide adds .on) */
.page-scdn .mod2_list .on{
    color: var(--scdn-blue);
}
.page-scdn .mod2_list .on .mod2_svg{
    background: var(--scdn-grad);
    box-shadow:
        0 0 0 6px rgba(43,120,246,.12),
        0 8px 22px -6px rgba(43,120,246,.55);
    transform: scale(1.06);
}
.page-scdn .mod2_list .on .mod2_svg::after{
    content: "";
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 1px dashed rgba(34,208,255,.5);
    animation: scdnSpin 8s linear infinite;
}
@keyframes scdnSpin{
    to { transform: rotate(360deg); }
}
.page-scdn .mod2_list .on + .mod2_text,
.page-scdn .mod2_text{
    margin: 0 0 32px;
    width: auto;
    max-width: 560px;
    color: #45587c;
    text-align: justify;
    font-family: PingFang SC, Microsoft YaHei, sans-serif;
    font-size: 15px;
    font-weight: 400;
    line-height: 1.85;
    padding-left: 68px;
}
/* ============================================================
   mod2 — DASHBOARD VISUAL CARDS (replaces static mod2_img)
   ============================================================ */
.mod2_visual_box{
    position: relative;
    right: auto;
    top: auto;
    flex: 0 0 460px;
    width: 460px;
    height: 460px;
    align-self: flex-start;
    margin-top: 10px;
}

.mv_card{
    position: absolute;
    inset: 0;
    padding: 26px;
    border-radius: 20px;
    background: linear-gradient(155deg, #ffffff 0%, #f3f8ff 100%);
    box-shadow:
        0 30px 60px -25px rgba(43,120,246,.35),
        0 0 0 1px rgba(43,120,246,.06);
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;

    opacity: 0;
    transform: translateY(20px) scale(.96);
    pointer-events: none;
    transition: opacity .45s ease, transform .55s cubic-bezier(.2,.8,.2,1);
    z-index: 1;
    overflow: hidden;
}
.mv_card::before{
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--scdn-grad);
}
.mv_card.mv_active{
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
    z-index: 5;
}

/* Header */
.mv_head{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.mv_label{
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--scdn-text-light);
    font-family: Inter, sans-serif;
}
.mv_dot{
    width: 8px;
    height: 8px;
    border-radius: 50%;
    box-shadow: 0 0 0 4px currentColor;
    animation: scdnPulse 1.8s ease-in-out infinite;
}
.mv_dot_green{ background: #2ddc8a; color: rgba(45,220,138,.18); }
.mv_dot_cyan { background: #22d0ff; color: rgba(34,208,255,.18); }
.mv_dot_blue { background: #2b78f6; color: rgba(43,120,246,.18); }
.mv_dot_red  { background: #ff5a5f; color: rgba(255,90,95,.18); }
.mv_chip{
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(43,120,246,.08);
    color: var(--scdn-blue);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .5px;
}

/* ----- Card 1: Real-time Monitor ----- */
.mv_metric_row{
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-top: 4px;
}
.mv_metric_num{
    font-size: 42px;
    font-weight: 800;
    background: var(--scdn-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    font-family: Inter, sans-serif;
    letter-spacing: -1px;
}
.mv_metric_unit{
    font-size: 14px;
    color: var(--scdn-text-light);
    font-weight: 500;
}
.mv_metric_trend{
    margin-left: auto;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    background: rgba(45,220,138,.14);
    color: #1da165;
}
.mv_bars{
    display: flex;
    align-items: flex-end;
    gap: 10px;
    height: 160px;
    padding: 6px 0;
    flex: 1;
    border-bottom: 1px dashed rgba(43,120,246,.18);
}
.mv_bar{
    flex: 1;
    border-radius: 6px 6px 0 0;
    background: linear-gradient(180deg, #22d0ff 0%, #2b78f6 100%);
    height: 0;
    transition: height .8s cubic-bezier(.2,.8,.2,1);
    box-shadow: 0 4px 12px -4px rgba(43,120,246,.4);
}
.mv_card.mv_active .mv_bar{ height: var(--h); }
.mv_card.mv_active .mv_bar:nth-child(1){ transition-delay: .05s; }
.mv_card.mv_active .mv_bar:nth-child(2){ transition-delay: .12s; }
.mv_card.mv_active .mv_bar:nth-child(3){ transition-delay: .19s; }
.mv_card.mv_active .mv_bar:nth-child(4){ transition-delay: .26s; }
.mv_card.mv_active .mv_bar:nth-child(5){ transition-delay: .33s; }
.mv_card.mv_active .mv_bar:nth-child(6){ transition-delay: .40s; }
.mv_card.mv_active .mv_bar:nth-child(7){ transition-delay: .47s; }
.mv_foot{
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--scdn-text-muted);
    font-family: Inter, sans-serif;
    letter-spacing: .5px;
    padding-top: 4px;
}

/* ----- Card 2: Bandwidth Compare ----- */
.mv_legend{
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 12px;
    color: var(--scdn-text);
    font-weight: 600;
}
.mv_leg_item{ display: inline-flex; align-items: center; gap: 8px; }
.mv_leg_item i{
    width: 14px;
    height: 3px;
    border-radius: 2px;
    display: inline-block;
}
.mv_chart{
    width: 100%;
    flex: 1;
    height: auto;
    min-height: 180px;
    overflow: visible;
}
.mv_line{
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
}
.mv_card.mv_active .mv_line{
    animation: scdnDrawLine 1.6s cubic-bezier(.4,0,.2,1) forwards;
}
.mv_card.mv_active .mv_lineB{ animation-delay: .25s; }
@keyframes scdnDrawLine{
    to { stroke-dashoffset: 0; }
}
.mv_path{ opacity: 0; transition: opacity .9s ease .3s; }
.mv_card.mv_active .mv_path{ opacity: 1; }

/* ----- Card 3: Geo Distribution ----- */
.mv_geo{
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.mv_geo_map{
    width: 100%;
    flex: 1;
    min-height: 150px;
}
.mv_geo_map .mv_geo_dots circle{
    transform-origin: center;
    transform-box: fill-box;
    filter: drop-shadow(0 0 6px currentColor);
}
.mv_card.mv_active .mv_geo_dots circle{
    animation: scdnGeoPing 2s ease-in-out infinite;
}
.mv_card.mv_active .mv_geo_dots circle:nth-child(1){ animation-delay: 0s; }
.mv_card.mv_active .mv_geo_dots circle:nth-child(2){ animation-delay: .25s; }
.mv_card.mv_active .mv_geo_dots circle:nth-child(3){ animation-delay: .5s; }
.mv_card.mv_active .mv_geo_dots circle:nth-child(4){ animation-delay: .75s; }
.mv_card.mv_active .mv_geo_dots circle:nth-child(5){ animation-delay: 1s; }
.mv_card.mv_active .mv_geo_dots circle:nth-child(6){ animation-delay: 1.25s; }
@keyframes scdnGeoPing{
    0%, 100% { transform: scale(1); opacity: .85; }
    50%      { transform: scale(1.6); opacity: 1; }
}
.mv_geo_list{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px 16px;
    font-size: 12px;
    color: var(--scdn-text);
    font-weight: 600;
}
.mv_geo_list span{ display: inline-flex; align-items: center; gap: 8px; }
.mv_geo_list span i{
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--scdn-grad);
}

/* ----- Card 4: Threat Log ----- */
.mv_log{
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 7px;
}
.mv_log_row{
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 10px;
    background: rgba(43,120,246,.04);
    border: 1px solid transparent;
    font-size: 11.5px;
    color: var(--scdn-text);
    font-family: Inter, "PingFang SC", sans-serif;
    transition: background .3s ease, border-color .3s ease;
}
.mv_log_row.mv_log_new{
    background: linear-gradient(90deg, rgba(255,90,95,.1), rgba(43,120,246,.04));
    border-color: rgba(255,90,95,.25);
}
.mv_card.mv_active .mv_log_row{
    animation: scdnLogIn .5s ease both;
}
.mv_card.mv_active .mv_log_row:nth-child(1){ animation-delay: .05s; }
.mv_card.mv_active .mv_log_row:nth-child(2){ animation-delay: .15s; }
.mv_card.mv_active .mv_log_row:nth-child(3){ animation-delay: .25s; }
.mv_card.mv_active .mv_log_row:nth-child(4){ animation-delay: .35s; }
@keyframes scdnLogIn{
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.mv_log_time{ color: var(--scdn-text-muted); font-weight: 600; letter-spacing: .3px; }
.mv_log_ip  { color: var(--scdn-blue);       font-weight: 700; font-family: 'JetBrains Mono', Inter, monospace; }
.mv_log_type{ color: var(--scdn-text);       font-weight: 500; }
.mv_log_badge{
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .5px;
}
.mv_log_blocked{ background: rgba(255,90,95,.14); color: #d9444a; }
.mv_log_passed { background: rgba(45,220,138,.16); color: #1da165; }
.mv_log_summary{
    display: flex;
    justify-content: space-around;
    padding-top: 12px;
    border-top: 1px dashed rgba(43,120,246,.18);
    font-size: 12px;
    color: var(--scdn-text-light);
}
.mv_log_summary strong{
    color: var(--scdn-blue);
    font-size: 16px;
    font-weight: 800;
    margin-right: 5px;
    font-family: Inter, sans-serif;
}

/* ----- Card 5: WAF Rules ----- */
.mv_rules{
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.mv_rule{
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 14px;
    padding: 11px 14px;
    border-radius: 10px;
    background: rgba(43,120,246,.04);
    border: 1px solid rgba(43,120,246,.08);
    font-size: 12.5px;
    transition: background .3s, border-color .3s;
}
.mv_card.mv_active .mv_rule{
    animation: scdnLogIn .5s ease both;
}
.mv_card.mv_active .mv_rule:nth-child(1){ animation-delay: .05s; }
.mv_card.mv_active .mv_rule:nth-child(2){ animation-delay: .12s; }
.mv_card.mv_active .mv_rule:nth-child(3){ animation-delay: .19s; }
.mv_card.mv_active .mv_rule:nth-child(4){ animation-delay: .26s; }
.mv_card.mv_active .mv_rule:nth-child(5){ animation-delay: .33s; }
.mv_rule_name{ color: var(--scdn-text); font-weight: 600; }
.mv_rule_lv{
    padding: 2px 10px;
    border-radius: 4px;
    background: rgba(43,120,246,.1);
    color: var(--scdn-blue);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .5px;
}
.mv_toggle{
    width: 34px;
    height: 18px;
    border-radius: 999px;
    background: rgba(43,120,246,.15);
    position: relative;
    cursor: pointer;
    transition: background .35s ease;
    flex-shrink: 0;
}
.mv_toggle::before{
    content: "";
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    top: 2px;
    left: 2px;
    transition: left .35s cubic-bezier(.2,.8,.2,1), background .35s ease;
    box-shadow: 0 2px 6px rgba(0,0,0,.18);
}
.mv_toggle_on{
    background: var(--scdn-grad);
}
.mv_toggle_on::before{
    left: 18px;
}

/* ============================================================
   4. mod3 — Help docs grid (kept compact; not focus)
   ============================================================ */
.page-scdn .mod3{
    text-align: center;
    width: 100%;
    padding-bottom: 110px;
    background: linear-gradient(0deg, rgba(243,246,255,.85), rgba(243,246,255,.85)),
                url("/style/img/scdn_mod3bg.jpg") center/cover no-repeat;
}
.page-scdn .mod3_list{
    margin-top: 60px;
    gap: 24px;
    display: flex;
    flex-wrap: wrap;
    padding: 0;
    list-style: none;
}
.page-scdn .mod3_list li{
    cursor: pointer;
    background: #fff;
    border-radius: 12px;
    flex: 1 1 calc(50% - 12px);
    min-width: 0;
    display: flex;
    align-items: center;
    transition: transform .35s ease, box-shadow .35s ease;
    overflow: hidden;
    margin: 0;
    list-style: none;
}
.page-scdn .mod3_list li:hover{
    transform: translateY(-4px);
    box-shadow: 0 25px 50px -20px rgba(22,61,100,.18);
}
.page-scdn .mod3_list li a{
    padding: 20px 24px;
    width: 100%;
    display: flex;
    align-items: center;
    color: var(--scdn-text);
    font-family: Inter, PingFang SC, sans-serif;
    font-size: 17px;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    border-left: 4px solid transparent;
    transition: border-color .35s ease, color .35s ease, padding .35s ease;
}
.page-scdn .mod3_list li:hover a{
    border-left-color: var(--scdn-blue);
    color: var(--scdn-blue);
    padding-left: 32px;
}

/* ============================================================
   5.  mod4 — Product Functions  (REDESIGNED)
   ============================================================ */
.page-scdn .mod4{
    padding: 110px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f4faff 100%);
    position: relative;
    overflow: hidden;
}
.page-scdn .mod4::before,
.page-scdn .mod4::after{
    content: "";
    position: absolute;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
    pointer-events: none;
}
.page-scdn .mod4::before{
    background: radial-gradient(circle, rgba(43,120,246,.1), transparent 70%);
    left: -180px;
    top: 100px;
}
.page-scdn .mod4::after{
    background: radial-gradient(circle, rgba(34,208,255,.1), transparent 70%);
    right: -180px;
    bottom: 50px;
}
.page-scdn .mod4 .m12{
    position: relative;
    z-index: 1;
}
.mod4_header{
    text-align: center;
    margin-bottom: 60px;
}
.mod4_label{
    display: inline-block;
    color: var(--scdn-blue);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 4px;
    margin-bottom: 14px;
    text-transform: uppercase;
}
.page-scdn .mod4_header .first_title{
    font-size: clamp(28px, 3.2vw, 42px);
    font-weight: 700;
    background: linear-gradient(135deg, #0a1a3a 0%, #2b78f6 90%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 0;
    line-height: 1.3;
    display: block;
    font-family: PingFang SC, Microsoft YaHei, Inter, sans-serif;
}
.page-scdn .mod4_header .first_title::after{
    content: "";
    display: block;
    width: 70px;
    height: 4px;
    background: var(--scdn-grad);
    border-radius: 2px;
    margin: 18px auto 0;
    box-shadow: 0 6px 14px -3px rgba(43,120,246,.4);
}
.mod4_subtitle{
    color: var(--scdn-text-light);
    font-size: 15px;
    margin: 18px 0 0;
    font-weight: 400;
    letter-spacing: .5px;
}

/* --- Card Grid --- */
.page-scdn .mod4_ul{
    padding-top: 0;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 0;
    list-style: none;
    counter-reset: mod4;
}
.page-scdn .mod4_li{
    width: 100%;
    height: auto;
    min-height: 200px;
    padding: 36px 36px;
    border: 1px solid rgba(43,120,246,.08);
    border-radius: 20px;
    background: #fff;
    display: flex;
    align-items: center;
    counter-increment: mod4;
    position: relative;
    overflow: hidden;
    transition: transform .45s cubic-bezier(.2,.8,.2,1),
                box-shadow .45s ease,
                border-color .45s ease,
                background .45s ease;
    list-style: none;
    margin: 0;
}
/* Large faded counter number top-right */
.page-scdn .mod4_li::before{
    content: "0" counter(mod4);
    position: absolute;
    top: 18px;
    right: 28px;
    font-size: 80px;
    font-weight: 800;
    line-height: 1;
    background: var(--scdn-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: .08;
    font-family: Inter, sans-serif;
    letter-spacing: -2px;
    transition: opacity .5s ease, transform .5s ease;
    pointer-events: none;
}
/* Subtle pattern dots in background */
.page-scdn .mod4_li::after{
    content: "";
    position: absolute;
    bottom: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background:
        radial-gradient(circle at center, rgba(43,120,246,.05) 1.5px, transparent 2px);
    background-size: 18px 18px;
    opacity: .8;
    pointer-events: none;
    transition: opacity .5s ease;
    z-index: 0;
}
.page-scdn .mod4_libox{
    width: 100%;
    display: flex;
    align-items: center;
    gap: 24px;
    position: relative;
    z-index: 2;
}

/* Icon wrapper - gradient circle */
.m4_li_iconwrap{
    flex-shrink: 0;
    width: 92px;
    height: 92px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(43,120,246,.1) 0%, rgba(34,208,255,.06) 100%);
    border: 1px solid rgba(43,120,246,.15);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: transform .5s cubic-bezier(.2,.8,.2,1),
                background .5s ease,
                border-color .5s ease,
                box-shadow .5s ease;
}
.m4_li_iconwrap::before{
    content: "";
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 1px dashed rgba(43,120,246,.3);
    opacity: 0;
    transition: opacity .5s ease, transform .5s ease;
}
.page-scdn .m4_li_img{
    width: 56px;
    height: 56px;
    margin: 0;
    transition: transform .5s ease;
}
.page-scdn .li_img1{ background: url(/style/img/scdn_m4_1.png) no-repeat center/contain; }
.page-scdn .li_img2{ background: url(/style/img/scdn_m4_2.png) no-repeat center/contain; }
.page-scdn .li_img3{ background: url(/style/img/scdn_m4_3.png) no-repeat center/contain; }
.page-scdn .li_img4{ background: url(/style/img/scdn_m4_4.png) no-repeat center/contain; }

/* Card hover -> icon swap to active version */
.page-scdn .mod4_li:hover .li_img1{ background: url(/style/img/scdn_m4_1a.png) no-repeat center/contain; }
.page-scdn .mod4_li:hover .li_img2{ background: url(/style/img/scdn_m4_2a.png) no-repeat center/contain; }
.page-scdn .mod4_li:hover .li_img3{ background: url(/style/img/scdn_m4_3a.png) no-repeat center/contain; }
.page-scdn .mod4_li:hover .li_img4{ background: url(/style/img/scdn_m4_4a.png) no-repeat center/contain; }

/* Text */
.page-scdn .m4_li_text{
    width: auto;
    flex: 1 1 0;
    min-width: 0;
}
.page-scdn .m4_li_tt{
    color: var(--scdn-deep);
    font-size: clamp(20px, 1.8vw, 24px);
    font-weight: 700;
    text-align: left;
    margin-bottom: 12px;
    line-height: 1.3;
    font-family: PingFang SC, Microsoft YaHei, sans-serif;
    transition: color .35s ease;
}
.page-scdn .m4_li_dec{
    width: 100%;
    font-size: 14px;
    color: var(--scdn-text-muted);
    line-height: 1.75;
    font-family: PingFang SC, Microsoft YaHei, sans-serif;
}

/* Bottom gradient bar - grows on hover */
.mod4_li_bar{
    position: absolute;
    left: 36px;
    right: 36px;
    bottom: 0;
    height: 3px;
    background: var(--scdn-grad);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .55s cubic-bezier(.2,.8,.2,1);
    z-index: 2;
}
/* Arrow indicator bottom-right */
.mod4_li_arrow{
    position: absolute;
    bottom: 22px;
    right: 32px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--scdn-grad);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    box-shadow: 0 8px 20px -6px rgba(43,120,246,.5);
    opacity: 0;
    transform: translate(15px, 0) scale(.6);
    transition: opacity .45s ease, transform .45s cubic-bezier(.2,.8,.2,1);
    z-index: 3;
}

/* HOVER STATES */
.page-scdn .mod4_li:hover{
    transform: translateY(-10px);
    border-color: rgba(34,208,255,.5);
    box-shadow:
        0 35px 70px -20px rgba(43,120,246,.3),
        0 0 0 1px rgba(34,208,255,.2);
    background: linear-gradient(135deg, #ffffff 0%, #f0f7ff 100%);
}
.page-scdn .mod4_li:hover::before{
    opacity: .18;
    transform: scale(1.06) rotate(-3deg);
    transform-origin: top right;
}
.page-scdn .mod4_li:hover::after{
    opacity: 1;
}
.page-scdn .mod4_li:hover .m4_li_iconwrap{
    background: var(--scdn-grad);
    border-color: rgba(255,255,255,.6);
    box-shadow:
        0 18px 35px -10px rgba(43,120,246,.5),
        0 0 0 6px rgba(43,120,246,.1);
    transform: scale(1.05);
}
.page-scdn .mod4_li:hover .m4_li_iconwrap::before{
    opacity: 1;
    transform: rotate(45deg);
}
.page-scdn .mod4_li:hover .m4_li_img{
    transform: scale(1.05);
    filter: brightness(0) invert(1);
}
.page-scdn .mod4_li:hover .m4_li_tt{
    color: var(--scdn-blue);
}
.page-scdn .mod4_li:hover .mod4_li_bar{
    transform: scaleX(1);
}
.page-scdn .mod4_li:hover .mod4_li_arrow{
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

/* ============================================================
   6. Responsive
   ============================================================ */
@media (max-width: 1280px){
    .page-scdn .banner_dy{ min-height: 480px; }
    .page-scdn .ban_cont3{ min-height: 480px; padding: 70px 24px; }
    .page-scdn .mod1{ padding: 90px 0; }
    .page-scdn .mod2,
    .page-scdn .mod4{ padding: 90px 0; }
    .page-scdn .mod2_contbox{ gap: 32px; }
    .mod2_visual_box{ flex: 0 0 400px; width: 400px; height: 420px; }
    .page-scdn .mod1_listtext svg{ width: 52px; height: 52px; }
    .banner_dy_net{ width: 50%; }
}

@media (max-width: 1024px){
    .page-scdn .mod1_list li{
        flex-direction: column;
        min-height: 0;
    }
    .page-scdn .mod1_list_pub{ padding: 28px; }
    .page-scdn .mod2_contbox{ flex-direction: column; gap: 40px; }
    .page-scdn .mod2_border{ display: none; }
    .page-scdn .mod2_list{ padding-top: 0; }
    .mod2_visual_box{
        flex: 0 0 auto;
        width: 100%;
        max-width: 540px;
        height: 440px;
        margin: 0 auto;
    }
    .page-scdn .mod3_list li{ flex: 1 1 100%; }
    .banner_dy_net{ width: 45%; opacity: .7; }
}

@media (max-width: 880px){
    .page-scdn .banner_dy{ min-height: 440px; }
    .page-scdn .ban_cont3{ min-height: 440px; padding: 60px 20px; }
    .banner_dy_net{ display: none; }
    .mod2_visual_box{ height: 420px; }
    .mv_card{ padding: 22px; }
    .mv_metric_num{ font-size: 36px; }
    .mv_bars{ height: 130px; }
    .page-scdn .mod4_ul{ grid-template-columns: 1fr; gap: 18px; }
    .page-scdn .mod4_li{ padding: 28px; min-height: 180px; }
    .page-scdn .mod4_li::before{ font-size: 64px; top: 14px; right: 22px; }
    .m4_li_iconwrap{ width: 78px; height: 78px; }
    .page-scdn .m4_li_img{ width: 46px; height: 46px; }
    .mod4_li_bar{ left: 28px; right: 28px; }
    .mod4_li_arrow{ width: 34px; height: 34px; bottom: 18px; right: 24px; }
}

@media (max-width: 640px){
    .page-scdn .banner_dy{ min-height: 400px; }
    .page-scdn .ban_cont3{ min-height: 400px; padding: 50px 16px; }
    .page-scdn .ban_badge{
        padding: 6px 14px;
        font-size: 11px;
        letter-spacing: 3px;
        margin-bottom: 20px;
    }
    .page-scdn .ban_btnbox{ gap: 10px; }
    .page-scdn .btn_public{ padding: 11px 22px; font-size: 13px; }
    .page-scdn .mod1{ padding: 60px 0; }
    .page-scdn .mod1_list{ gap: 16px; margin-top: 40px; }
    .page-scdn .mod1_list_pub{ padding: 22px; }
    .page-scdn .mod1_listtext{ gap: 16px; }
    .page-scdn .mod1_listtext svg{ width: 46px; height: 46px; }
    .page-scdn .mod1_listtext dl dt{ font-size: 17px; }
    .page-scdn .mod2{ padding: 60px 0; }
    .page-scdn .mod2_title{ font-size: 18px; gap: 18px; }
    .page-scdn .mod2_svg{ width: 38px; height: 38px; }
    .page-scdn .mod2_svg svg{ width: 18px; height: 18px; }
    .page-scdn .mod2_text{ padding-left: 56px; font-size: 14px; }
    .page-scdn .mod4{ padding: 60px 0; }
    .mod4_header{ margin-bottom: 40px; }
    .page-scdn .mod4_libox{ gap: 18px; }
    .page-scdn .mod4_li{ padding: 22px; min-height: 0; }
    .page-scdn .mod4_li::before{ font-size: 50px; top: 12px; right: 18px; }
    .m4_li_iconwrap{ width: 64px; height: 64px; }
    .page-scdn .m4_li_img{ width: 38px; height: 38px; }
    .page-scdn .m4_li_tt{ font-size: 17px; margin-bottom: 8px; }
    .page-scdn .m4_li_dec{ font-size: 13px; }
    .mod4_li_bar{ left: 22px; right: 22px; }
    .mod4_li_arrow{
        width: 30px; height: 30px;
        font-size: 14px;
        bottom: 14px; right: 18px;
        opacity: 1;
        transform: translate(0,0) scale(.85);
    }
}