* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; background: #0E1521; color: #E8F0FA; line-height: 1.7; }
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.nkcw { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.nkhb { position: sticky; top: 0; z-index: 100; background: #0E1521; border-bottom: 1px solid #2C3E58; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45); }
.nkhb .nkcw { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nklogo { display: flex; align-items: center; gap: 10px; }
.nklogo img { width: 42px; height: 42px; border-radius: 12px; object-fit: cover; border: 2px solid #3DE8D6; box-shadow: 0 0 12px rgba(61, 232, 214, 0.45); }
.nklogo span { font-size: 18px; font-weight: 700; color: #E8F0FA; letter-spacing: 0.5px; }
.nkmb { display: none; flex-direction: column; gap: 5px; background: transparent; border: 0; cursor: pointer; padding: 6px; }
.nkmb i { display: block; width: 22px; height: 2px; background: #3DE8D6; border-radius: 2px; }
.nknv { display: flex; align-items: center; gap: 26px; }
.nknv a { font-size: 15px; color: #8FA3BC; transition: color 0.2s, text-shadow 0.2s; }
.nknv a:hover { color: #3DE8D6; text-shadow: 0 0 10px rgba(61, 232, 214, 0.6); }

.nkro { padding: 60px 0 66px; position: relative; overflow: hidden; background: radial-gradient(circle at 78% 30%, rgba(169, 116, 255, 0.16) 0%, rgba(169, 116, 255, 0) 45%), radial-gradient(circle at 12% 80%, rgba(61, 232, 214, 0.14) 0%, rgba(61, 232, 214, 0) 45%), #0E1521; }
.nkro::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(143, 163, 188, 0.14) 1px, transparent 1px); background-size: 26px 26px; opacity: 0.5; }
.nkrow { display: flex; align-items: center; gap: 50px; position: relative; }
.nkleft { flex: 1; }
.nkbadge { display: inline-block; padding: 7px 18px; background: rgba(61, 232, 214, 0.1); color: #3DE8D6; border: 1px solid #3DE8D6; border-radius: 30px; font-size: 13px; font-weight: 600; margin-bottom: 20px; box-shadow: 0 0 16px rgba(61, 232, 214, 0.25), inset 0 0 12px rgba(61, 232, 214, 0.12); }
.nkleft h1 { font-size: 36px; color: #F2F7FF; line-height: 1.32; margin-bottom: 18px; font-weight: 800; text-shadow: 0 0 30px rgba(61, 232, 214, 0.25); }
.nkdesc { font-size: 16px; color: #A9BAD0; margin-bottom: 28px; max-width: 540px; }
.nkbtns { display: flex; gap: 14px; margin-bottom: 32px; flex-wrap: wrap; }
.nkbtn { display: inline-block; padding: 14px 32px; background: linear-gradient(135deg, #3DE8D6, #22C7B6); color: #08201E; border-radius: 50px; font-size: 16px; font-weight: 800; transition: transform 0.2s, box-shadow 0.2s; box-shadow: 0 0 22px rgba(61, 232, 214, 0.4), 0 10px 24px rgba(0, 0, 0, 0.4); }
.nkbtn:hover { transform: translateY(-2px); box-shadow: 0 0 32px rgba(61, 232, 214, 0.65), 0 14px 30px rgba(0, 0, 0, 0.45); }
.nkbtn2 { display: inline-block; padding: 14px 30px; background: transparent; color: #A974FF; border: 1.5px solid #A974FF; border-radius: 50px; font-size: 16px; font-weight: 600; transition: all 0.2s; box-shadow: 0 0 14px rgba(169, 116, 255, 0.2), inset 0 0 10px rgba(169, 116, 255, 0.08); }
.nkbtn2:hover { background: rgba(169, 116, 255, 0.14); box-shadow: 0 0 22px rgba(169, 116, 255, 0.45); }
.nkstats { display: flex; gap: 34px; }
.nkstats li { display: flex; flex-direction: column; }
.nkstats b { font-size: 26px; font-weight: 800; color: #3DE8D6; text-shadow: 0 0 14px rgba(61, 232, 214, 0.5); }
.nkstats span { font-size: 13px; color: #8FA3BC; }

.nkright { flex: 1; position: relative; }
.nkshow { position: relative; width: 100%; height: 500px; }
.nkglow { position: absolute; border-radius: 50%; filter: blur(34px); z-index: 1; }
.nkglow1 { width: 220px; height: 220px; background: rgba(61, 232, 214, 0.32); top: 10px; right: 30px; }
.nkglow2 { width: 200px; height: 200px; background: rgba(169, 116, 255, 0.3); bottom: 30px; left: 10px; }
.nkcrt { position: absolute; border-radius: 22px; overflow: hidden; background: #1B2940; border: 1.5px solid #2C3E58; box-shadow: 0 14px 34px rgba(0, 0, 0, 0.55); }
.nkcrt img { width: 100%; height: 100%; object-fit: cover; display: block; }
.nkcrt-back { width: 220px; height: 380px; right: 36px; top: 50px; transform: rotate(9deg); border-color: rgba(169, 116, 255, 0.55); box-shadow: 0 0 24px rgba(169, 116, 255, 0.28), 0 14px 34px rgba(0, 0, 0, 0.55); z-index: 3; }
.nkcrt-main { width: 260px; height: 430px; left: 50%; top: 20px; transform: translateX(-50%) rotate(-3deg); border-color: #3DE8D6; box-shadow: 0 0 38px rgba(61, 232, 214, 0.42), 0 20px 44px rgba(0, 0, 0, 0.66); z-index: 5; }
.nkcrt-top { position: absolute; top: 14px; left: 50%; transform: translateX(-50%); width: 56px; height: 5px; background: #3DE8D6; border-radius: 5px; box-shadow: 0 0 12px rgba(61, 232, 214, 0.85); z-index: 10; }
.nkcrt-lab { position: absolute; top: 28px; right: 14px; padding: 3px 9px; background: rgba(14, 21, 33, 0.88); color: #F5B942; border: 1px solid rgba(245, 185, 66, 0.6); border-radius: 5px; font-size: 11px; font-weight: 700; letter-spacing: 1px; z-index: 10; }
.nkcrt-lab2 { color: #A974FF; border-color: rgba(169, 116, 255, 0.6); }
.nkcrt-scan { position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%); color: #3DE8D6; font-size: 10px; letter-spacing: 3px; font-weight: 700; z-index: 10; text-shadow: 0 0 9px rgba(61, 232, 214, 0.65); }
.nkdsc { position: absolute; width: 96px; height: 96px; border-radius: 50%; overflow: hidden; border: 2px solid; background: #1B2940; z-index: 6; }
.nkdsc img { width: 100%; height: 100%; object-fit: cover; }
.nkdsc-1 { left: -6px; top: 70px; border-color: #3DE8D6; box-shadow: 0 0 20px rgba(61, 232, 214, 0.4), 0 8px 24px rgba(0, 0, 0, 0.55); transform: rotate(-14deg); }
.nkdsc-2 { right: -6px; bottom: 90px; border-color: #A974FF; box-shadow: 0 0 20px rgba(169, 116, 255, 0.4), 0 8px 24px rgba(0, 0, 0, 0.55); transform: rotate(16deg); }
.nkonl { position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 10px; background: rgba(27, 41, 64, 0.92); border: 1px solid #2C3E58; border-radius: 30px; padding: 8px 16px; z-index: 8; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5); }
.nkonldot { width: 8px; height: 8px; border-radius: 50%; background: #3DE8D6; box-shadow: 0 0 0 3px rgba(61, 232, 214, 0.22); flex-shrink: 0; }
.nkonlc b { display: block; font-size: 13px; color: #E8F0FA; line-height: 1.3; }
.nkonlc span { font-size: 11px; color: #8FA3BC; }

.nktitle { text-align: center; font-size: 28px; font-weight: 800; color: #F2F7FF; margin-bottom: 38px; padding: 24px 0 10px; position: relative; cursor: pointer; }
.nktitle::after { content: ""; display: block; width: 64px; height: 3px; background: linear-gradient(90deg, #3DE8D6, #A974FF); border-radius: 3px; margin: 14px auto 0; box-shadow: 0 0 12px rgba(61, 232, 214, 0.6); }
.nktag { display: inline-block; padding: 4px 12px; background: #1B2940; color: #F5B942; border: 1px solid rgba(245, 185, 66, 0.55); border-radius: 6px; font-size: 13px; margin-right: 10px; vertical-align: middle; font-weight: 700; letter-spacing: 2px; box-shadow: 0 0 12px rgba(245, 185, 66, 0.18); }

.nks01 { padding: 58px 0; background: #0E1521; }
.nkintro { display: flex; gap: 38px; align-items: center; margin-bottom: 40px; }
.nkitxt { flex: 1; }
.nkitxt p { font-size: 15px; color: #A9BAD0; margin-bottom: 16px; }
.nktip { padding: 14px 20px; background: rgba(61, 232, 214, 0.07); border-left: 3px solid #3DE8D6; border-radius: 0 12px 12px 0; color: #9FEDE5 !important; font-weight: 600; display: inline-block; margin-bottom: 22px; box-shadow: inset 0 0 18px rgba(61, 232, 214, 0.06); }
.nkbtm { margin-top: 8px; }
.nkfeat { flex: 1; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.nkfc { padding: 22px 18px; background: #16202F; border-radius: 16px; border: 1px solid #2C3E58; transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s; }
.nkfc:hover { transform: translateY(-4px); border-color: rgba(61, 232, 214, 0.6); box-shadow: 0 0 20px rgba(61, 232, 214, 0.18); }
.nkfc i { font-size: 28px; color: #3DE8D6; text-shadow: 0 0 12px rgba(61, 232, 214, 0.5); }
.nkfc b { display: block; font-size: 16px; color: #E8F0FA; margin: 8px 0 4px; }
.nkfc span { font-size: 13px; color: #8FA3BC; }
.nkcards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.nkkd { border-radius: 14px; overflow: hidden; background: #16202F; border: 1px solid #2C3E58; transition: transform 0.2s, box-shadow 0.2s; position: relative; }
.nkkd::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, #3DE8D6, #A974FF); z-index: 2; box-shadow: 0 0 10px rgba(61, 232, 214, 0.6); }
.nkkd:hover { transform: translateY(-5px); box-shadow: 0 0 24px rgba(61, 232, 214, 0.25); }
.nkkd img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.nkkd figcaption { padding: 11px 12px; font-size: 13px; color: #3DE8D6; font-weight: 600; text-align: center; background: #1B2940; letter-spacing: 1px; }

.nks02 { padding: 58px 0; background: #16202F; }
.nkadv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 28px; }
.nkac { padding: 26px 22px; background: #1B2940; border-radius: 18px; border: 1px solid #2C3E58; position: relative; overflow: hidden; transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s; }
.nkac:hover { transform: translateY(-4px); border-color: rgba(169, 116, 255, 0.6); box-shadow: 0 0 22px rgba(169, 116, 255, 0.2); }
.nknum { position: absolute; top: 10px; right: 16px; font-size: 42px; font-weight: 900; color: transparent; -webkit-text-stroke: 1.4px rgba(61, 232, 214, 0.35); line-height: 1; }
.nkac i { font-size: 30px; color: #A974FF; text-shadow: 0 0 12px rgba(169, 116, 255, 0.55); }
.nkac b { display: block; font-size: 17px; color: #F2F7FF; margin: 10px 0 8px; }
.nkac p { font-size: 14px; color: #A9BAD0; }
.nks02 .nkbtm { display: block; width: fit-content; margin: 0 auto; }

.nks03 { padding: 58px 0; background: #0E1521; }
.nksteps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 28px; position: relative; }
.nkst { padding: 26px 20px; background: #16202F; border-radius: 16px; border: 1px solid #2C3E58; text-align: center; position: relative; }
.nkst::after { content: ""; position: absolute; top: 42px; right: -14px; width: 12px; border-top: 2px dashed rgba(61, 232, 214, 0.55); z-index: 2; }
.nkst:last-child::after { display: none; }
.nkno { display: inline-block; width: 48px; height: 48px; line-height: 48px; background: linear-gradient(135deg, #1B2940, #22334D); color: #3DE8D6; border: 1.5px solid #3DE8D6; border-radius: 14px; font-size: 20px; font-weight: 800; margin-bottom: 14px; box-shadow: 0 0 16px rgba(61, 232, 214, 0.3), inset 0 0 10px rgba(61, 232, 214, 0.1); }
.nkst b { display: block; font-size: 16px; color: #F2F7FF; margin-bottom: 8px; }
.nkst p { font-size: 13px; color: #8FA3BC; }
.nks03 .nkbtm { display: block; width: fit-content; margin: 0 auto; }

.nks04 { padding: 58px 0; background: #16202F; }
.nknews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.nknw { padding: 24px 20px; background: #1B2940; border-radius: 16px; border: 1px solid #2C3E58; position: relative; overflow: hidden; transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s; }
.nknw::before { content: ""; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: linear-gradient(180deg, #F5B942, #E09A22); box-shadow: 0 0 10px rgba(245, 185, 66, 0.6); }
.nknw:hover { transform: translateY(-3px); border-color: rgba(245, 185, 66, 0.5); box-shadow: 0 0 22px rgba(245, 185, 66, 0.16); }
.nkdate { display: inline-block; padding: 4px 12px; background: rgba(245, 185, 66, 0.14); color: #F5B942; border: 1px solid rgba(245, 185, 66, 0.5); border-radius: 6px; font-size: 12px; font-weight: 700; margin-bottom: 12px; letter-spacing: 1px; }
.nknw b { display: block; font-size: 16px; color: #F2F7FF; margin-bottom: 10px; line-height: 1.5; }
.nknw p { font-size: 14px; color: #A9BAD0; margin-bottom: 12px; }

.nks05 { padding: 58px 0; background: #0E1521; }
.nkfaqs { max-width: 880px; margin: 0 auto; }
.nkfi { background: #16202F; border-radius: 14px; border: 1px solid #2C3E58; margin-bottom: 12px; overflow: hidden; transition: border-color 0.2s, box-shadow 0.2s; }
.nkfi.active { border-color: rgba(61, 232, 214, 0.55); box-shadow: 0 0 18px rgba(61, 232, 214, 0.14); }
.nkfb { width: 100%; display: flex; align-items: center; gap: 14px; padding: 18px 22px; background: transparent; border: 0; cursor: pointer; text-align: left; font-size: 15px; }
.nkq { display: inline-block; min-width: 34px; height: 34px; line-height: 34px; text-align: center; background: rgba(61, 232, 214, 0.12); color: #3DE8D6; border: 1px solid rgba(61, 232, 214, 0.6); border-radius: 9px; font-size: 15px; font-weight: 800; flex-shrink: 0; box-shadow: 0 0 10px rgba(61, 232, 214, 0.2); }
.nkfb b { flex: 1; color: #E8F0FA; font-weight: 600; }
.nkarrow { width: 0; height: 0; border-left: 6px solid transparent; border-right: 6px solid transparent; border-top: 8px solid #A974FF; transition: transform 0.2s; flex-shrink: 0; filter: drop-shadow(0 0 5px rgba(169, 116, 255, 0.7)); }
.nkfi.active .nkarrow { transform: rotate(180deg); }
.nkfa { max-height: 0; overflow: hidden; transition: max-height 0.3s; }
.nkfi.active .nkfa { max-height: 240px; }
.nkfa p { padding: 0 22px 18px 70px; font-size: 14px; color: #A9BAD0; }
.nks05 .nkbtm { display: block; width: fit-content; margin: 26px auto 0; }

.nks06 { padding: 58px 0; background: #16202F; }
.nkrev { column-count: 2; column-gap: 20px; }
.nkrc { display: inline-block; width: 100%; background: #1B2940; border-radius: 16px; border: 1px solid #2C3E58; padding: 22px 20px; margin-bottom: 18px; }
.nkp { background: #162233; }
.nkav { width: 44px; height: 44px; line-height: 44px; text-align: center; background: linear-gradient(135deg, #3DE8D6, #A974FF); color: #0E1521; border-radius: 50%; font-size: 16px; font-weight: 800; margin-bottom: 12px; box-shadow: 0 0 14px rgba(61, 232, 214, 0.35); }
.nkrh { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.nkrh b { font-size: 14px; color: #E8F0FA; }
.nkrh span { font-size: 12px; color: #6E829C; }
.nkrcc p { font-size: 14px; color: #A9BAD0; }

.nkft { padding: 48px 0 24px; background: #0A1018; border-top: 1px solid #2C3E58; }
.nkftop { display: flex; align-items: center; gap: 20px; padding-bottom: 22px; border-bottom: 1px solid #1C2940; margin-bottom: 22px; flex-wrap: wrap; }
.nkslogan { font-size: 14px; color: #8FA3BC; flex: 1; min-width: 240px; }
.nkfbot { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.nkfbot nav { display: flex; gap: 20px; flex-wrap: wrap; }
.nkfbot nav a { font-size: 14px; color: #8FA3BC; transition: color 0.2s; }
.nkfbot nav a:hover { color: #3DE8D6; }
.nkcopy { text-align: center; font-size: 13px; color: #55698A; padding-top: 16px; border-top: 1px solid #1C2940; }

@media (max-width: 768px) {
    .nkhb .nkcw { height: 60px; }
    .nkmb { display: flex; }
    .nknv { position: fixed; top: 60px; left: 0; right: 0; background: #0E1521; flex-direction: column; gap: 0; padding: 8px 0; border-bottom: 1px solid #2C3E58; box-shadow: 0 10px 24px rgba(0, 0, 0, 0.6); transform: translateY(-220%); transition: transform 0.3s; z-index: 99; }
    .nknv.open { transform: translateY(0); }
    .nknv a { padding: 14px 24px; width: 100%; border-bottom: 1px solid #1C2940; }
    .nknv a:last-child { border-bottom: 0; }
    .nklogo img { width: 34px; height: 34px; }
    .nklogo span { font-size: 15px; }

    .nkro { padding: 34px 0 38px; }
    .nkrow { flex-direction: column; gap: 30px; }
    .nkleft h1 { font-size: 24px; }
    .nkdesc { font-size: 14px; }
    .nkbtns { flex-direction: column; gap: 10px; }
    .nkbtn, .nkbtn2 { width: 100%; text-align: center; padding: 12px 20px; font-size: 15px; }
    .nkstats { gap: 18px; }
    .nkstats b { font-size: 20px; }
    .nkshow { height: 410px; }
    .nkcrt-back { width: 170px; height: 290px; right: 20px; top: 40px; }
    .nkcrt-main { width: 210px; height: 350px; top: 10px; }
    .nkcrt-top { width: 44px; }
    .nkdsc { width: 72px; height: 72px; }
    .nkdsc-1 { left: 0; top: 50px; }
    .nkdsc-2 { right: 0; bottom: 70px; }
    .nkonl { padding: 6px 12px; }
    .nkonlc b { font-size: 12px; }
    .nkonlc span { font-size: 10px; }

    .nktitle { font-size: 22px; padding: 14px 0 6px; margin-bottom: 24px; }
    .nktag { padding: 3px 9px; font-size: 12px; }
    .nks01, .nks02, .nks03, .nks04, .nks05, .nks06 { padding: 36px 0; }
    .nkintro { flex-direction: column; gap: 22px; }
    .nkfeat { grid-template-columns: repeat(2, 1fr); gap: 10px; width: 100%; }
    .nkfc { padding: 16px 12px; }
    .nkfc i { font-size: 24px; }
    .nkfc b { font-size: 14px; }
    .nkfc span { font-size: 12px; }

    .nkadv { grid-template-columns: 1fr; gap: 12px; }
    .nkac { padding: 20px 18px; }

    .nksteps { grid-template-columns: 1fr; gap: 12px; }
    .nkst::after { display: none; }
    .nkst { padding: 22px 18px; }

    .nkcards { grid-template-columns: repeat(2, 1fr); gap: 12px; }

    .nknews { grid-template-columns: 1fr; gap: 12px; }

    .nkfa p { padding-left: 22px; }
    .nkrh span { font-size: 11px; }

    .nkrev { column-count: 1; }

    .nkftop { flex-direction: column; align-items: flex-start; gap: 12px; }
    .nkslogan { width: 100%; }
    .nkfbot { flex-direction: column; align-items: flex-start; }
    .nkfbot nav { gap: 12px 18px; }
    .nkfbot .nkbtn { width: 100%; text-align: center; }
}