:root {
    --bg-0: #f3f6ef;
    --bg-1: #dce8dd;
    --card: rgba(255, 255, 255, 0.92);
    --card-strong: rgba(255, 255, 255, 0.97);
    --ink-0: #1e2730;
    --ink-1: #4b5d66;
    --ink-2: #6b7d86;
    --accent: #176c61;
    --accent-2: #ff8f00;
    --accent-soft: rgba(23, 108, 97, 0.1);
    --error: #b33434;
    --warning: #9a6700;
    --ok: #1e7d4f;
    --border: rgba(23, 108, 97, 0.18);
    --border-strong: rgba(23, 108, 97, 0.28);
    --shadow: 0 16px 45px rgba(16, 41, 36, 0.14);
    --shadow-soft: 0 10px 26px rgba(16, 41, 36, 0.08);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --font-ui: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-title: "Avenir Next", "Trebuchet MS", "PingFang SC", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 28px;
    min-height: 100vh;
    font-family: var(--font-ui);
    color: var(--ink-0);
    background:
        radial-gradient(circle at 8% 8%, rgba(255, 210, 110, 0.3), transparent 36%),
        radial-gradient(circle at 85% 12%, rgba(23, 108, 97, 0.2), transparent 32%),
        linear-gradient(135deg, var(--bg-0), var(--bg-1));
}

img {
    display: block;
    max-width: 100%;
}

code {
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

button,
select,
textarea {
    font: inherit;
}

textarea,
select,
button {
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease, background 0.2s ease;
}

.ambient-shape {
    position: fixed;
    pointer-events: none;
    z-index: -1;
    filter: blur(2px);
}

.shape-one {
    width: 320px;
    height: 320px;
    border-radius: 44% 56% 65% 35% / 40% 48% 52% 60%;
    background: rgba(255, 143, 0, 0.17);
    top: -70px;
    right: -40px;
    animation: floaty 9s ease-in-out infinite;
}

.shape-two {
    width: 260px;
    height: 260px;
    border-radius: 58% 42% 36% 64% / 48% 62% 38% 52%;
    background: rgba(23, 108, 97, 0.15);
    bottom: -80px;
    left: -50px;
    animation: floaty 11s ease-in-out infinite reverse;
}

@keyframes floaty {
    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-12px) rotate(2deg);
    }
}

.panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 18px;
    backdrop-filter: blur(8px);
}

.app-header {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.85fr);
    gap: 22px;
    align-items: stretch;
    margin-bottom: 18px;
}

.brand-block {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.brand-row {
    display: flex;
    align-items: center;
    gap: 18px;
}

.brand-logo {
    width: min(360px, 42vw);
    min-width: 220px;
    padding: 12px 14px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 246, 0.9));
    border: 1px solid rgba(23, 108, 97, 0.12);
    box-shadow: var(--shadow-soft);
}

.eyebrow {
    margin: 0;
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--accent);
}

h1 {
    margin: 6px 0 10px;
    font-family: var(--font-title);
    font-size: clamp(34px, 5vw, 52px);
    line-height: 1;
    color: #0f564f;
}

.subtitle {
    margin: 0;
    color: var(--ink-1);
    font-size: 15px;
    max-width: 680px;
    line-height: 1.7;
}

.hero-pill-row,
.hero-link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.hero-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(23, 108, 97, 0.16);
    color: #16524c;
    font-size: 13px;
    font-weight: 600;
}

.hero-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid rgba(23, 108, 97, 0.22);
    background: rgba(255, 255, 255, 0.72);
    color: #124740;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.hero-link:hover {
    background: #ffffff;
    transform: translateY(-1px);
}

.header-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    background: var(--card-strong);
}

.header-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.header-label {
    margin: 0;
    font-size: 12px;
    letter-spacing: 0.12em;
    color: var(--accent);
}

.runtime-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 12px;
    min-height: 32px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    border: 1px solid transparent;
}

.runtime-neutral {
    color: #1b635a;
    background: rgba(23, 108, 97, 0.1);
    border-color: rgba(23, 108, 97, 0.18);
}

.runtime-ok {
    color: var(--ok);
    background: rgba(30, 125, 79, 0.12);
    border-color: rgba(30, 125, 79, 0.22);
}

.runtime-warning {
    color: var(--warning);
    background: rgba(154, 103, 0, 0.12);
    border-color: rgba(154, 103, 0, 0.2);
}

.runtime-error {
    color: var(--error);
    background: rgba(179, 52, 52, 0.1);
    border-color: rgba(179, 52, 52, 0.22);
}

.tip-list {
    margin: 0;
    padding-left: 18px;
    display: grid;
    gap: 10px;
    color: var(--ink-1);
    font-size: 14px;
    line-height: 1.6;
}

.asset-note {
    margin: 0;
    color: var(--ink-2);
    font-size: 13px;
    line-height: 1.6;
}

.asset-note a,
.site-footer a {
    color: var(--accent);
    text-decoration: none;
}

.asset-note a:hover,
.site-footer a:hover {
    text-decoration: underline;
}

.info-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.info-card {
    min-height: 132px;
    box-shadow: var(--shadow-soft);
}

.info-card h2 {
    margin-bottom: 8px;
}

.info-card p {
    margin: 0;
    color: var(--ink-1);
    font-size: 14px;
    line-height: 1.7;
}

.panel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.panel-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    margin-bottom: 10px;
}

h2 {
    margin: 0;
    font-size: 20px;
    font-family: var(--font-title);
}

.controls-inline {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

label {
    font-size: 13px;
    color: var(--ink-1);
}

select {
    margin-left: 6px;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 7px 9px;
    color: var(--ink-0);
    background: #fdfefe;
}

select:focus {
    outline: none;
    border-color: var(--border-strong);
    box-shadow: 0 0 0 3px rgba(23, 108, 97, 0.12);
}

.checkbox-control {
    display: flex;
    gap: 6px;
    align-items: center;
}

textarea {
    width: 100%;
    min-height: 330px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: #fbfcf8;
    padding: 14px;
    font-size: 14px;
    line-height: 1.6;
    resize: vertical;
    color: var(--ink-0);
}

textarea:focus {
    outline: none;
    border-color: var(--border-strong);
    box-shadow: 0 0 0 4px rgba(23, 108, 97, 0.12);
}

.button-row {
    margin-top: 12px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    border: none;
    border-radius: 12px;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    cursor: progress;
    opacity: 0.82;
}

.btn-primary {
    background: linear-gradient(135deg, #176c61, #0f5850);
    color: #fff;
    box-shadow: 0 6px 14px rgba(23, 108, 97, 0.25);
}

.btn-secondary {
    background: #f5f9f7;
    color: #18443f;
    border: 1px solid rgba(23, 108, 97, 0.3);
}

.summary-bar {
    margin-top: 12px;
    padding: 11px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    min-height: 44px;
    display: flex;
    align-items: center;
    background: rgba(23, 108, 97, 0.07);
    color: var(--ink-1);
    border: 1px solid transparent;
}

.summary-bar[data-tone="neutral"] {
    background: rgba(23, 108, 97, 0.07);
    color: var(--ink-1);
    border-color: rgba(23, 108, 97, 0.12);
}

.summary-bar[data-tone="success"] {
    background: rgba(30, 125, 79, 0.1);
    color: var(--ok);
    border-color: rgba(30, 125, 79, 0.2);
}

.summary-bar[data-tone="warning"] {
    background: rgba(154, 103, 0, 0.11);
    color: var(--warning);
    border-color: rgba(154, 103, 0, 0.18);
}

.summary-bar[data-tone="error"] {
    background: rgba(179, 52, 52, 0.1);
    color: var(--error);
    border-color: rgba(179, 52, 52, 0.18);
}

.panel-diagnostics {
    margin-top: 18px;
}

.diagnostics-list {
    display: grid;
    gap: 10px;
}

.hint {
    margin: 0;
    font-size: 14px;
    color: var(--ink-1);
}

.diag-card {
    border-radius: 12px;
    border: 1px solid rgba(75, 93, 102, 0.22);
    padding: 10px 12px;
    background: #f9fbfb;
}

.diag-card h3 {
    margin: 0 0 8px;
    font-size: 14px;
    color: #2a3a42;
}

.diag-item {
    font-size: 13px;
    margin: 6px 0;
    padding: 7px 9px;
    border-radius: 8px;
}

.diag-item.error {
    background: rgba(179, 52, 52, 0.09);
    color: var(--error);
    border: 1px solid rgba(179, 52, 52, 0.3);
}

.diag-item.warning {
    background: rgba(154, 103, 0, 0.1);
    color: var(--warning);
    border: 1px solid rgba(154, 103, 0, 0.25);
}

.diag-item.ok {
    background: rgba(30, 125, 79, 0.1);
    color: var(--ok);
    border: 1px solid rgba(30, 125, 79, 0.25);
}

.site-footer {
    margin-top: 18px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--ink-2);
    font-size: 13px;
}

@media (max-width: 1180px) {
    .app-header {
        grid-template-columns: 1fr;
    }

    .brand-logo {
        width: min(420px, 100%);
    }

    .info-strip {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 980px) {
    body {
        padding: 18px;
    }

    .brand-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .panel-grid {
        grid-template-columns: 1fr;
    }

    textarea {
        min-height: 260px;
    }
}

@media (max-width: 640px) {
    .panel {
        padding: 15px;
    }

    .header-card-top,
    .panel-title-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .brand-logo {
        min-width: 0;
        width: 100%;
    }

    .site-footer {
        flex-direction: column;
    }
}