:root {
    --tc-primary: #0052D9;
    --tc-primary-hover: #1B66E0;
    --tc-primary-bg: #ECF2FE;
    --tc-ink: #1D2129;
    --tc-ink-2: #4E5969;
    --tc-ink-3: #86909C;
    --tc-line: #E5E6EB;
    --tc-bg: #FFFFFF;
    --tc-bg-page: #F5F7FA;
    --tc-bg-soft: #F7F9FC;
    --tc-ok: #12B76A;
    --tc-radius: 12px;
    --tc-shadow: 0 8px 24px rgba(29, 33, 41, .06);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { font-size: 14px; }

.tc-body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--tc-ink);
    background: var(--tc-bg);
    -webkit-font-smoothing: antialiased;
}

.tc-body a { text-decoration: none; color: inherit; transition: color .15s, background .15s, border-color .15s, box-shadow .15s; }

.tc-body img { display: block; }

.tc-inner { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

:focus-visible { outline: 2px solid var(--tc-primary); outline-offset: 2px; border-radius: 4px; }


.tc-topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--tc-bg);
    border-bottom: 1px solid var(--tc-line);
}

.tc-topbar-inner { display: flex; align-items: center; gap: 32px; height: 60px; }

.tc-brand { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 600; color: var(--tc-ink); }
.tc-brand img { width: 30px; height: 30px; }

.tc-nav { display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.tc-nav a {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--tc-ink-2);
}
.tc-nav a:hover { color: var(--tc-primary); background: var(--tc-primary-bg); }
.tc-nav a.on { color: var(--tc-primary); font-weight: 600; }

.tc-topbar-ops { margin-left: auto; display: flex; align-items: center; gap: 16px; }

.tc-op-plain { font-size: 14px; color: var(--tc-ink-2); }
.tc-op-plain:hover { color: var(--tc-primary); }

.tc-op-primary, .tc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    border: 1px solid transparent;
}

.tc-op-primary {
    padding: 7px 18px;
    background: var(--tc-primary);
    color: #FFFFFF;
}
.tc-op-primary:hover { background: var(--tc-primary-hover); color: #FFFFFF; }


.tc-btn { padding: 11px 26px; font-size: 15px; border-radius: 8px; transition: all .18s ease; }
.tc-btn-primary { background: var(--tc-primary); color: #FFFFFF; box-shadow: 0 6px 16px rgba(0, 82, 217, .25); }
.tc-btn-primary:hover { background: var(--tc-primary-hover); color: #FFFFFF; transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0, 82, 217, .34); }
.tc-btn-ghost { background: var(--tc-bg); color: var(--tc-ink); border-color: var(--tc-line); }
.tc-btn-ghost:hover { color: var(--tc-primary); border-color: var(--tc-primary); }
.tc-btn-white { background: #FFFFFF; color: var(--tc-primary); }
.tc-btn-white:hover { background: #ECF2FE; color: var(--tc-primary); }
.tc-btn-ghost-w { background: transparent; color: #FFFFFF; border-color: rgba(255, 255, 255, .6); }
.tc-btn-ghost-w:hover { border-color: #FFFFFF; color: #FFFFFF; }


.tc-hero {
    position: relative;
    background: var(--tc-bg-soft);
    border-bottom: 1px solid var(--tc-line);
    overflow: hidden;
}

.tc-hero-inner { position: relative; z-index: 1; }


.tc-hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: .32;
    pointer-events: none;
    will-change: transform;
}
.tc-blob-1 { width: 420px; height: 420px; background: #0052D9; top: -140px; left: -120px; animation: tc-drift-1 14s ease-in-out infinite alternate; }
.tc-blob-2 { width: 360px; height: 360px; background: #7C3AED; bottom: -160px; left: 32%; opacity: .26; animation: tc-drift-2 17s ease-in-out infinite alternate; }
.tc-blob-3 { width: 400px; height: 400px; background: #06B6D4; top: -130px; right: -100px; opacity: .28; animation: tc-drift-3 15s ease-in-out infinite alternate; }
.tc-blob-4 { width: 260px; height: 260px; background: #EC4899; bottom: -120px; right: 20%; opacity: .22; animation: tc-drift-1 19s ease-in-out infinite alternate-reverse; }

@keyframes tc-drift-1 {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(70px, 50px) scale(1.15); }
}
@keyframes tc-drift-2 {
    0%   { transform: translate(0, 0) scale(1.1); }
    100% { transform: translate(-60px, -45px) scale(.95); }
}
@keyframes tc-drift-3 {
    0%   { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-80px, 40px) scale(1.12); }
}

@media (prefers-reduced-motion: reduce) {
    .tc-hero-blob, .tc-ch-live i, .tc-ch-bar i, .tc-hero-text > *, .tc-hero-card { animation: none !important; }
}

.tc-hero-inner {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: 56px;
    padding-top: 76px;
    padding-bottom: 72px;
}

.tc-hero-chip {
    display: inline-block;
    padding: 5px 14px;
    border: 1px solid rgba(255, 255, 255, .75);
    border-radius: 999px;
    background: rgba(255, 255, 255, .55);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    color: var(--tc-primary);
    font-size: 13px;
    margin-bottom: 22px;
}

.tc-hero-text h1 {
    font-size: 42px;
    line-height: 1.3;
    font-weight: 700;
    letter-spacing: .5px;
}

.tc-hero-sub { margin-top: 18px; font-size: 16px; line-height: 1.8; color: var(--tc-ink-2); max-width: 460px; }

.tc-hl { color: var(--tc-primary); }


@keyframes tc-rise {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
}
.tc-hero-text > * { animation: tc-rise .6s ease-out both; }
.tc-hero-text > .tc-hero-chip { animation-delay: .05s; }
.tc-hero-text > h1 { animation-delay: .12s; }
.tc-hero-text > .tc-hero-sub { animation-delay: .2s; }
.tc-hero-text > .tc-hero-points { animation-delay: .28s; }
.tc-hero-text > .tc-hero-ops { animation-delay: .36s; }

.tc-hero-points { list-style: none; margin-top: 24px; display: flex; flex-wrap: wrap; gap: 10px 12px; }
.tc-hero-points li {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 13.5px;
    color: var(--tc-ink-2);
    padding: 7px 15px;
    border: 1px solid rgba(255, 255, 255, .75);
    border-radius: 999px;
    background: rgba(255, 255, 255, .5);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}
.tc-hero-points img { width: 15px; height: 15px; }

.tc-hero-ops { margin-top: 32px; display: flex; gap: 14px; }


.tc-hero-card {
    position: relative;
    background: rgba(255, 255, 255, .58);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    backdrop-filter: blur(20px) saturate(1.5);
    border: 1px solid rgba(255, 255, 255, .8);
    border-radius: var(--tc-radius);
    box-shadow: 0 12px 32px rgba(29, 33, 41, .1);
    padding: 22px 24px 24px;
    animation: tc-card-in .7s cubic-bezier(.2, .7, .3, 1) .25s both, tc-float 6s ease-in-out 1.2s infinite alternate;
}

@keyframes tc-card-in {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes tc-float {
    from { transform: translateY(0); }
    to   { transform: translateY(-10px); }
}

.tc-ch-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--tc-line); }
.tc-ch-title { font-size: 15px; font-weight: 600; }
.tc-ch-live { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--tc-ok); }
.tc-ch-live i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--tc-ok);
    animation: tc-pulse 1.6s ease-out infinite;
}
@keyframes tc-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(18, 183, 106, .35); }
    100% { box-shadow: 0 0 0 8px rgba(18, 183, 106, 0); }
}

.tc-ch-status { display: flex; align-items: center; justify-content: space-between; padding: 18px 0 14px; }
.tc-ch-label { display: block; font-size: 13px; color: var(--tc-ink-3); margin-bottom: 6px; }
.tc-ch-ok { font-size: 24px; font-weight: 700; color: var(--tc-ok); }
.tc-ch-badge {
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--tc-primary-bg);
    color: var(--tc-primary);
    font-size: 13px;
}

.tc-ch-rows { display: grid; gap: 1px; background: var(--tc-line); border: 1px solid var(--tc-line); border-radius: 8px; overflow: hidden; }
.tc-ch-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 14px;
    background: rgba(255, 255, 255, .5);
    font-size: 13px;
}
.tc-ch-row span { color: var(--tc-ink-3); }
.tc-ch-row b { color: var(--tc-ink); font-weight: 500; }

.tc-ch-foot { padding: 16px 0 0; }
.tc-ch-foot > span { font-size: 12px; color: var(--tc-ink-3); }
.tc-ch-bar { margin-top: 10px; height: 6px; border-radius: 3px; background: #EEF1F5; overflow: hidden; }
.tc-ch-bar i {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 3px;
    background: var(--tc-primary);
    animation: tc-load 2.4s ease-in-out infinite;
}
@keyframes tc-load {
    0%   { transform: translateX(-30%); }
    100% { transform: translateX(0); }
}

.tc-ch-tags { margin-top: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tc-ch-tag { border: 1px solid rgba(255, 255, 255, .75); background: rgba(255, 255, 255, .45); border-radius: 8px; padding: 12px 14px; }
.tc-ch-tag b { display: block; font-size: 14px; margin-bottom: 3px; }
.tc-ch-tag span { font-size: 12px; color: var(--tc-ink-3); }


.tc-sec-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.tc-sec-eyebrow {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--tc-primary);
    font-weight: 600;
    margin-bottom: 12px;
}
.tc-sec-head h2 { font-size: 30px; font-weight: 700; letter-spacing: .3px; }
.tc-sec-head p { margin-top: 12px; font-size: 15px; color: var(--tc-ink-2); line-height: 1.7; }


.tc-query { padding: 76px 0 84px; background: var(--tc-bg); }

.tc-query-panel {
    max-width: 760px;
    margin: 0 auto;
    background: var(--tc-bg);
    border: 1px solid var(--tc-line);
    border-radius: var(--tc-radius);
    box-shadow: var(--tc-shadow);
    padding: 28px;
}

.tc-query-form { display: flex; gap: 12px; }
.tc-query-input {
    flex: 1;
    height: 48px;
    padding: 0 16px;
    border: 1px solid var(--tc-line);
    border-radius: 8px;
    font-size: 15px;
    color: var(--tc-ink);
    background: var(--tc-bg);
    appearance: none;
    -webkit-appearance: none;
    transition: border-color .15s, box-shadow .15s;
}
.tc-query-input::placeholder { color: var(--tc-ink-3); }
.tc-query-input:focus {
    outline: none;
    border-color: var(--tc-primary);
    box-shadow: 0 0 0 3px rgba(0, 82, 217, .1);
}
.tc-query-btn {
    height: 48px;
    padding: 0 30px;
    border: none;
    border-radius: 8px;
    background: var(--tc-primary);
    color: #FFFFFF;
    font-size: 15px;
    cursor: pointer;
    transition: background .15s;
    appearance: none;
    -webkit-appearance: none;
}
.tc-query-btn:hover { background: var(--tc-primary-hover); }

.tc-query-hint { margin-top: 14px; font-size: 12px; color: var(--tc-ink-3); text-align: center; }

.tc-query-result { margin-top: 18px; }
.tc-result {
    display: flex;
    gap: 12px;
    padding: 16px 18px;
    border-radius: 8px;
    border: 1px solid var(--tc-line);
    background: var(--tc-bg-page);
}
.tc-result img { width: 22px; height: 22px; flex: none; margin-top: 1px; }
.tc-r-main { font-size: 15px; font-weight: 600; }
.tc-r-sub { margin-top: 4px; font-size: 13px; color: var(--tc-ink-2); line-height: 1.6; }
.tc-result-ok { border-color: #BFE8D2; background: #F0FBF5; }
.tc-result-warn { border-color: #F5DCB8; background: #FFF9F0; }
.tc-result-bad { border-color: #F6C6C4; background: #FEF3F2; }


.tc-products { padding: 80px 0 88px; background: var(--tc-bg-page); border-top: 1px solid var(--tc-line); }

.tc-product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.tc-product-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--tc-bg);
    border: 1px solid var(--tc-line);
    border-radius: var(--tc-radius);
    padding: 28px 26px 52px;
    transition: box-shadow .2s, transform .2s, border-color .2s;
}
.tc-product-card:hover {
    box-shadow: 0 12px 28px rgba(0, 82, 217, .12);
    border-color: rgba(0, 82, 217, .35);
    transform: translateY(-3px);
}

.tc-product-icon {
    width: 46px;
    height: 46px;
    border-radius: 10px;
    background: var(--tc-primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}
.tc-product-icon img { width: 24px; height: 24px; }

.tc-product-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.tc-product-card p { font-size: 13.5px; line-height: 1.75; color: var(--tc-ink-2); }

.tc-product-tag {
    position: absolute;
    left: 26px;
    bottom: 20px;
    padding: 3px 10px;
    border-radius: 4px;
    background: var(--tc-primary-bg);
    color: var(--tc-primary);
    font-size: 12px;
}


.tc-steps { padding: 80px 0 88px; background: var(--tc-bg); }

.tc-step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.tc-step-card {
    position: relative;
    border: 1px solid var(--tc-line);
    border-radius: var(--tc-radius);
    padding: 30px 26px;
    overflow: hidden;
    transition: box-shadow .2s, border-color .2s;
}
.tc-step-card:hover { box-shadow: var(--tc-shadow); border-color: rgba(0, 82, 217, .35); }

.tc-step-no {
    display: block;
    font-size: 52px;
    font-weight: 700;
    line-height: 1;
    color: #D6E4FF;
    margin-bottom: 18px;
    font-family: "Segoe UI", Arial, sans-serif;
}

.tc-step-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.tc-step-card p { font-size: 13.5px; line-height: 1.75; color: var(--tc-ink-2); }


.tc-cta { background: var(--tc-primary); }

.tc-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding-top: 56px;
    padding-bottom: 56px;
}
.tc-cta h2 { font-size: 26px; font-weight: 700; color: #FFFFFF; }
.tc-cta p { margin-top: 10px; font-size: 15px; color: rgba(255, 255, 255, .82); }

.tc-cta-ops { display: flex; gap: 14px; flex: none; }


.tc-footer { background: #171A21; color: #A9AEB8; }

.tc-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding-top: 52px;
    padding-bottom: 44px;
}

.tc-foot-brand { display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 600; color: #FFFFFF; }
.tc-foot-brand img { width: 28px; height: 28px; }
.tc-foot-desc { margin-top: 14px; font-size: 13px; line-height: 1.8; color: #7C828E; max-width: 300px; }

.tc-foot-col h4 { font-size: 14px; font-weight: 600; color: #FFFFFF; margin-bottom: 16px; }
.tc-foot-col a, .tc-foot-col .tc-foot-line {
    display: block;
    font-size: 13px;
    color: #A9AEB8;
    margin-bottom: 11px;
}
.tc-foot-col a:hover { color: #FFFFFF; }

.tc-foot-bar { border-top: 1px solid rgba(255, 255, 255, .08); }
.tc-foot-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 18px;
    padding-bottom: 18px;
    font-size: 12.5px;
    color: #7C828E;
}


@media (max-width: 1024px) {
    .tc-hero-inner { grid-template-columns: 1fr; gap: 40px; padding-top: 52px; padding-bottom: 52px; }
    .tc-hero-card { max-width: 560px; }
    .tc-product-grid { grid-template-columns: repeat(2, 1fr); }
    .tc-step-grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .tc-footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 900px) {
    .tc-nav { display: none; }
}

@media (max-width: 640px) {
    .tc-hero-text h1 { font-size: 30px; }
    .tc-hero-ops { flex-wrap: wrap; }
    .tc-query-form { flex-direction: column; }
    .tc-query-btn { width: 100%; }
    .tc-product-grid { grid-template-columns: 1fr; }
    .tc-step-grid { grid-template-columns: 1fr; }
    .tc-cta-inner { flex-direction: column; align-items: flex-start; }
    .tc-footer-grid { grid-template-columns: 1fr; gap: 28px; }
}