/* Final responsive overrides for Cecil landing page. */

html,
body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

img,
svg {
    max-width: 100%;
}

.header {
    padding-left: 0;
    padding-right: 0;
}

.header-inner {
    width: min(100%, 75rem);
    gap: 1rem;
}

.logo {
    flex: 0 0 auto;
    width: clamp(7.75rem, 22vw, 11.25rem);
    height: auto;
    aspect-ratio: 120 / 29;
}

.nav {
    min-width: 0;
}

.nav a.theme-toggle-btn::after {
    content: none;
}

.hero {
    width: 100%;
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
}

.typewriter {
    width: 100%;
    max-width: 42rem;
}

.typed-text,
.cursor,
.display-1,
.title-main,
.title-sub,
.title-text {
    letter-spacing: 0;
}

.title-main,
.title-sub,
.domain,
.bookmark-tip,
.download,
.slogan,
.noise {
    max-width: 100%;
}

.domain {
    overflow-wrap: anywhere;
}

.buttons,
.download-links {
    max-width: 100%;
}

.btn,
.download-links a,
.nav a {
    white-space: nowrap;
}

.row {
    width: 100%;
}

.carriers {
    width: 100%;
    overflow: hidden;
}

@media (max-width: 1100px) {
    .header-inner {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }

    .nav {
        gap: 0.875rem;
    }

    .nav a {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
}

@media (max-width: 900px) {
    .header {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    .header-inner {
        min-height: 4.375rem;
        padding: 0.75rem max(1rem, env(safe-area-inset-right)) 0.75rem max(1rem, env(safe-area-inset-left));
    }

    .menu-toggle {
        display: flex !important;
        flex: 0 0 auto;
        margin-right: 0;
    }

    .nav {
        position: fixed;
        top: 4.375rem;
        left: 0;
        right: 0;
        display: none;
        width: 100%;
        max-height: calc(100vh - 4.375rem);
        max-height: calc(100dvh - 4.375rem);
        overflow-y: auto;
        grid-template-columns: minmax(0, 1fr);
        gap: 0.625rem;
        padding: 0.875rem max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
        background: rgba(0, 0, 0, 0.96);
        box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.35);
        z-index: 1000;
    }

    .nav.active {
        display: grid !important;
    }

    .nav a,
    .nav .register,
    .theme-toggle-btn {
        width: 100%;
        min-height: 2.75rem;
        margin: 0;
        padding: 0.75rem 1rem;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
    }

    .nav a.theme-toggle-btn::after {
        content: "切换主题";
        position: static;
        width: auto;
        height: auto;
        margin-left: 0.375rem;
        background: none;
        transform: none;
    }

    .telegram-link {
        padding-left: 1rem !important;
    }

    .telegram-link::before {
        position: static;
        flex: 0 0 auto;
        margin-right: 0.375rem;
    }

    .main {
        padding-top: 4.375rem;
    }

    .hero {
        min-height: auto;
        padding-top: clamp(2.25rem, 8vh, 4.5rem);
        padding-bottom: 3rem;
    }

    .typed-text,
    .cursor {
        font-size: clamp(1.25rem, 5.6vw, 1.75rem);
    }

    .typewriter {
        height: auto;
        min-height: 2.25rem;
        margin-top: 0;
        margin-bottom: 0.75rem;
    }

    .display-1,
    .title-main {
        font-size: clamp(2.2rem, 9.2vw, 3.5rem) !important;
        line-height: 1.14;
        margin-bottom: 0.625rem;
    }

    .title-sub {
        font-size: clamp(1.45rem, 6.6vw, 2.35rem) !important;
        line-height: 1.22;
        margin-bottom: 1rem;
    }

    .domain,
    .bookmark-tip {
        width: min(100%, 32rem);
        margin-left: auto;
        margin-right: auto;
        font-size: clamp(0.875rem, 3.7vw, 1.0625rem);
        line-height: 1.65;
    }

    .copy-hint {
        display: inline-flex;
        align-items: center;
        margin-left: 0.375rem;
        vertical-align: baseline;
    }

    .buttons {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem;
        width: min(100%, 24rem);
        margin-left: auto;
        margin-right: auto;
    }

    .btn {
        min-width: 8.75rem;
        padding: 0.75rem 1.25rem;
    }

    .download {
        width: min(100%, 28rem);
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 2.5rem;
    }

    .download-links {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.75rem;
        width: 100%;
    }

    .download-links a {
        min-width: 0;
        width: 100%;
        margin: 0;
        padding: 0.75rem 0.625rem;
        text-align: center;
    }

    .slogan {
        margin-top: 1.25rem;
        margin-bottom: 0;
    }

    .title-text {
        font-size: clamp(1.35rem, 5.5vw, 2rem);
        line-height: 1.28;
    }

    .col-lg-8,
    .col-lg-4,
    .col-md-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .col-lg-4 {
        margin: 0 0 1rem;
    }

    .row {
        margin-left: 0;
        margin-right: 0;
    }

    .col-12,
    .col-md-12,
    .col-lg-8,
    .col-lg-4 {
        padding-left: 0;
        padding-right: 0;
    }

    .noise {
        padding: 1.25rem;
        border-radius: 0.875rem;
    }
}

@media (max-width: 480px) {
    .header-inner {
        gap: 0.75rem;
    }

    .logo {
        width: clamp(7rem, 42vw, 8.75rem);
    }

    .hero {
        padding-left: max(0.875rem, env(safe-area-inset-left));
        padding-right: max(0.875rem, env(safe-area-inset-right));
    }

    .buttons {
        width: min(100%, 19rem);
    }

    .btn {
        width: 100%;
    }

    .download {
        width: min(100%, 20rem);
    }

    .download-links {
        gap: 0.625rem;
    }

    .domain {
        line-height: 1.7;
    }

    .copy-hint {
        display: flex;
        width: fit-content;
        margin: 0.375rem auto 0;
    }

    .footer-copyright {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

@media (max-width: 340px) {
    .download-links {
        grid-template-columns: 1fr;
    }

    .nav a,
    .nav .register,
    .theme-toggle-btn {
        min-height: 2.5rem;
        padding-top: 0.625rem;
        padding-bottom: 0.625rem;
    }
}

@media (max-width: 900px) and (orientation: landscape) {
    .hero {
        padding-top: 1.5rem;
    }

    .nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .buttons {
        width: auto;
    }
}

:root[data-theme="light"] .nav {
    color: var(--text-color);
}

@media (max-width: 900px) {
    :root[data-theme="light"] .nav {
        background: rgba(255, 255, 255, 0.96);
    }
}

.support-widget {
    --support-panel-bg: rgba(17, 17, 17, 0.96);
    --support-panel-text: #f7fbff;
    --support-panel-muted: rgba(226, 237, 248, 0.76);
    --support-panel-border: rgba(255, 255, 255, 0.12);
    --support-close-color: rgba(255, 255, 255, 0.72);
    --support-button-bg: transparent;
    --support-button-color: #80c7ff;
    --support-button-hover: #1a90ff;
    --support-shadow: 0 1.5rem 3.25rem rgba(0, 0, 0, 0.38), 0 0 0 1px rgba(255, 255, 255, 0.08);
    --support-offset: 50%;
    --support-drag-left: 0;
    --support-drag-top: 50%;
    --support-edge-gap: max(0.5rem, env(safe-area-inset-top));
    --support-header-gap: max(4rem, env(safe-area-inset-top));
    position: fixed;
    z-index: 1100;
    display: flex;
    align-items: center;
    color: var(--support-panel-text);
    transition: transform 0.2s ease;
}

:root[data-theme="light"] .support-widget {
    --support-panel-bg: rgba(255, 255, 255, 0.76);
    --support-panel-text: #22313f;
    --support-panel-muted: #4f5f73;
    --support-panel-border: rgba(34, 49, 63, 0.16);
    --support-close-color: #5d6673;
    --support-button-bg: rgba(255, 255, 255, 0.35);
    --support-button-color: #096dd9;
    --support-button-hover: #1a90ff;
    --support-shadow: 0 1.25rem 2.75rem rgba(15, 35, 60, 0.18), 0 0 0 1px rgba(255, 255, 255, 0.72);
}

.support-widget[data-placement="left"] {
    left: 0;
    top: var(--support-offset);
    flex-direction: row;
    transform: translateY(-50%);
}

.support-widget[data-placement="right"] {
    right: 0;
    top: var(--support-offset);
    flex-direction: row-reverse;
    transform: translateY(-50%);
}

.support-widget[data-placement="top"] {
    top: var(--support-header-gap);
    left: var(--support-offset);
    flex-direction: column;
    align-items: center;
    transform: translateX(-50%);
}

.support-widget[data-placement="bottom"] {
    bottom: max(0.5rem, env(safe-area-inset-bottom));
    left: var(--support-offset);
    flex-direction: column-reverse;
    align-items: center;
    transform: translateX(-50%);
}

.support-widget.is-dragging {
    left: var(--support-drag-left);
    top: var(--support-drag-top);
    right: auto;
    bottom: auto;
    transform: none;
    transition: none;
}

.support-widget__tab {
    width: 2.25rem;
    min-height: 6rem;
    border: 1px solid rgba(26, 144, 255, 0.45);
    border-left: 0;
    border-radius: 0 0.5rem 0.5rem 0;
    background: linear-gradient(180deg, #1a90ff, #096dd9);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.3);
    touch-action: none;
    user-select: none;
    transition: filter 0.2s ease, transform 0.2s ease;
}

.support-widget[data-placement="left"] .support-widget__tab {
    border-left: 0;
    border-radius: 0 0.5rem 0.5rem 0;
}

.support-widget[data-placement="right"] .support-widget__tab {
    border-left: 1px solid rgba(26, 144, 255, 0.45);
    border-right: 0;
    border-radius: 0.5rem 0 0 0.5rem;
}

.support-widget[data-placement="top"] .support-widget__tab,
.support-widget[data-placement="bottom"] .support-widget__tab {
    width: auto;
    min-width: 5.5rem;
    min-height: 2.25rem;
    padding: 0 1rem;
    border-left: 1px solid rgba(26, 144, 255, 0.45);
}

.support-widget[data-placement="top"] .support-widget__tab {
    border-top: 0;
    border-radius: 0 0 0.5rem 0.5rem;
}

.support-widget[data-placement="bottom"] .support-widget__tab {
    border-bottom: 0;
    border-radius: 0.5rem 0.5rem 0 0;
}

.support-widget[data-placement="left"] .support-widget__tab .support-widget__label,
.support-widget[data-placement="right"] .support-widget__tab .support-widget__label {
    writing-mode: vertical-rl;
    letter-spacing: 0;
}

.support-widget[data-placement="top"] .support-widget__tab .support-widget__label,
.support-widget[data-placement="bottom"] .support-widget__tab .support-widget__label {
    writing-mode: horizontal-tb;
    letter-spacing: 0;
}

.support-widget__tab:hover,
.support-widget__tab:focus-visible {
    filter: brightness(1.08);
}

.support-widget__panel {
    width: min(20.75rem, calc(100vw - 3.5rem));
    padding: 1.5rem !important;
    border: 1px solid var(--support-panel-border);
    border-radius: 0.75rem;
    background: var(--support-panel-bg);
    color: var(--support-panel-text);
    box-shadow: var(--support-shadow);
    transform-origin: left center;
    animation: supportPanelEnter 0.325s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    backdrop-filter: blur(25px) saturate(150%);
    -webkit-backdrop-filter: blur(25px) saturate(150%);
}

.support-widget[data-placement="left"] .support-widget__panel {
    margin-left: 0.5rem;
}

.support-widget[data-placement="right"] .support-widget__panel {
    margin-right: 0.5rem;
}

.support-widget[data-placement="top"] .support-widget__panel {
    margin-top: 0.5rem;
}

.support-widget[data-placement="bottom"] .support-widget__panel {
    margin-bottom: 0.5rem;
}

.support-widget.is-collapsed .support-widget__panel {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateX(-1rem) scale(0.92);
}

.support-widget.is-collapsing .support-widget__panel {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-1rem) translateY(0.375rem) scale(0.92);
}

.support-widget[data-placement="right"].is-collapsed .support-widget__panel {
    transform: translateX(1rem) scale(0.92);
}

.support-widget[data-placement="right"].is-collapsing .support-widget__panel {
    transform: translateX(1rem) translateY(0.375rem) scale(0.92);
}

.support-widget[data-placement="top"].is-collapsed .support-widget__panel {
    transform: translateY(-1rem) scale(0.92);
}

.support-widget[data-placement="top"].is-collapsing .support-widget__panel {
    transform: translateY(-1rem) scale(0.92);
}

.support-widget[data-placement="bottom"].is-collapsed .support-widget__panel {
    transform: translateY(1rem) scale(0.92);
}

.support-widget[data-placement="bottom"].is-collapsing .support-widget__panel {
    transform: translateY(1rem) scale(0.92);
}

.support-widget__close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 2rem;
    height: 2rem;
    border: 0;
    border-radius: 0.375rem;
    background: rgba(0, 0, 0, 0.08);
    color: var(--support-close-color);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.support-widget__close:hover,
.support-widget__close:focus-visible {
    background: rgba(255, 59, 48, 0.82);
    color: #fff;
    transform: scale(1.05);
    box-shadow: 0 0.25rem 1.25rem rgba(255, 59, 48, 0.28);
}

.support-widget__panel h3 {
    margin: 0 2rem 1rem 0;
    color: var(--support-panel-text);
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.35;
}

.support-widget__panel p {
    margin: 0 0 1.25rem;
    color: var(--support-panel-muted);
    font-size: 0.9375rem;
    line-height: 1.55;
}

.support-widget__button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 2.75rem;
    border: 1px solid #1a90ff;
    border-radius: 0.1875rem;
    background: var(--support-button-bg);
    color: var(--support-button-color);
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.2;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.support-widget__button:hover,
.support-widget__button:focus-visible {
    background: var(--support-button-hover);
    color: #fff;
}

.support-widget__button:active {
    transform: translateY(1px);
}

.support-chat {
    position: fixed;
    z-index: 1110;
    display: flex;
    flex-direction: column;
    width: min(24rem, calc(100vw - 1.5rem));
    height: min(38rem, calc(100vh - 1.5rem));
    padding: 0 !important;
    overflow: hidden;
    border: 1px solid var(--support-panel-border);
    border-radius: 0.75rem;
    background: var(--support-panel-bg);
    box-shadow: var(--support-shadow);
    transform-origin: left center;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    backdrop-filter: blur(25px) saturate(150%);
    -webkit-backdrop-filter: blur(25px) saturate(150%);
}

.support-widget[data-placement="left"] .support-chat {
    left: 2.75rem;
    top: var(--support-offset);
    transform: translateY(-50%);
}

.support-widget[data-placement="right"] .support-chat {
    right: 2.75rem;
    top: var(--support-offset);
    transform: translateY(-50%);
    transform-origin: right center;
}

.support-widget[data-placement="top"] .support-chat {
    top: calc(var(--support-header-gap) + 2.75rem);
    left: var(--support-offset);
    height: min(34rem, calc(100vh - 4rem));
    transform: translateX(-50%);
    transform-origin: top center;
}

.support-widget[data-placement="bottom"] .support-chat {
    bottom: max(3.25rem, calc(env(safe-area-inset-bottom) + 2.75rem));
    left: var(--support-offset);
    height: min(34rem, calc(100vh - 4rem));
    transform: translateX(-50%);
    transform-origin: bottom center;
}

.support-widget[data-placement="left"] .support-chat.is-hidden {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateX(-1rem) translateY(-50%) scale(0.94);
}

.support-widget[data-placement="right"] .support-chat.is-hidden {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateX(1rem) translateY(-50%) scale(0.94);
}

.support-widget[data-placement="top"] .support-chat.is-hidden {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(-1rem) scale(0.94);
}

.support-widget[data-placement="bottom"] .support-chat.is-hidden {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(1rem) scale(0.94);
}

.support-chat__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 3rem;
    padding: 0 0.75rem 0 1rem;
    border-bottom: 1px solid var(--support-panel-border);
    color: var(--support-panel-text);
}

.support-chat__header strong {
    font-size: 0.9375rem;
    font-weight: 600;
}

.support-chat__close {
    width: 2rem;
    height: 2rem;
    border: 0;
    border-radius: 0.375rem;
    background: rgba(0, 0, 0, 0.08);
    color: var(--support-close-color);
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.support-chat__close:hover,
.support-chat__close:focus-visible {
    background: rgba(255, 59, 48, 0.82);
    color: #fff;
    transform: scale(1.05);
}

.support-chat__frame {
    width: 100%;
    flex: 1;
    min-height: 0;
    border: 0;
    background: #fff;
}

@keyframes supportPanelEnter {
    0% {
        opacity: 0;
        transform: translateX(-1rem) translateY(0.625rem) scale(0.92);
    }

    100% {
        opacity: 1;
        transform: translateX(0) translateY(0) scale(1);
    }
}

@media (max-width: 480px) {
    .support-widget__panel {
        width: min(18rem, calc(100vw - 3.25rem));
        padding: 1.25rem;
    }

    .support-widget[data-placement="left"] .support-widget__tab,
    .support-widget[data-placement="right"] .support-widget__tab {
        min-height: 5rem;
    }

    .support-chat {
        width: min(22rem, calc(100vw - 1rem));
        height: min(34rem, calc(100vh - 1rem));
    }
}