:root {
--primary-azure-blue: #f7c800;
--secondary-navy-depth: #f7c800;
--accent-sky-bright: #f7c800;
--neutral-pristine-white: #fad6ab;
--neutral-cloud-gray: #f8fafc;
--neutral-slate-medium: #64748b;
--neutral-charcoal-dark: #334155;
--success-emerald-tone: #f00;
--gradient-primary-spectrum: linear-gradient(135deg, #333 1%, #1a1a1a 100%);
--gradient-secondary-depth: linear-gradient(180deg, #111 0%, #333 100%);
--shadow-elevation-subtle: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
--shadow-elevation-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
--shadow-elevation-prominent: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
--border-radius-standard: 12px;
--border-radius-large: 20px;
--transition-smooth-standard: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
--spacing-unit-base: 1rem;
--typography-heading-primary: 2.5rem;
--typography-heading-secondary: 1.875rem;
--typography-body-large: 1.125rem;
--typography-body-standard: 1rem;
}

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

.application-container-master {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
line-height: 1.6;
color: var(--neutral-charcoal-dark);
background:#111;
min-height: 100vh;
overflow-x: hidden;
}

.content-wrapper-primary {
max-width: 480px;
margin: 0 auto;
padding: calc(var(--spacing-unit-base) * 2);
min-height: 100vh;
display: flex;
flex-direction: column;
justify-content: flex-start;
position: relative;
padding-top: calc(var(--spacing-unit-base) * 1.5);
}

.hero-section-container {
text-align: center;
margin-bottom: calc(var(--spacing-unit-base) * .5);
}

.profile-image-wrapper-animated {
width: 220px;
height: 220px;
margin: 0 auto 10px;
position: relative;
display: flex;
align-items: center;
justify-content: center;
}

.profile-image-element-breathing {
width: 100%;
height: 100%;

}

@keyframes breathingPulseAnimation {
0%, 100% {
    transform: scale(1);
    box-shadow: var(--shadow-elevation-medium);
}
50% {
    transform: scale(1.05);
    box-shadow: var(--shadow-elevation-prominent);
}
}

.headline-primary-text {
font-size: var(--typography-heading-primary);
font-weight: 800;
color: var(--neutral-pristine-white);
margin-bottom: var(--spacing-unit-base);
text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
line-height: 1.2;
}

.subtitle-secondary-text {
font-size: var(--typography-body-large);
    color: var(--neutral-pristine-white);
margin-bottom: calc(var(--spacing-unit-base) );
font-weight:400;
line-height:1.2;
}

.form-container-interactive {
background: #fff;
border-radius: var(--border-radius-large);
padding: calc(var(--spacing-unit-base) * 2);
box-shadow: var(--shadow-elevation-prominent);
margin-bottom: calc(var(--spacing-unit-base) * 2);
}

.progress-indicator-wrapper {
margin-bottom: calc(var(--spacing-unit-base) * 1);
}

.progress-bar-container {
background: #e2e8f0;
height: 8px;
border-radius: 4px;
overflow: hidden;
margin-bottom: var(--spacing-unit-base);
border: 1px solid #cbd5e1;
box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.progress-bar-fill-element {
height: 100%;
background: var(--gradient-primary-spectrum);
width: 2%;
transition: var(--transition-smooth-standard);
border-radius: 4px;
min-width: 2%;
}

.progress-text-indicator {
font-size: 0.875rem;
color: var(--neutral-slate-medium);
text-align: center;
font-weight: 500;
}

.question-section-container {
display: none;
animation: slideInFromBottom 0.5s ease-out;
}

.question-section-container.active-state-visible {
display: block;
}

@keyframes slideInFromBottom {
from {
    opacity: 0;
    transform: translateY(20px);
}
to {
    opacity: 1;
    transform: translateY(0);
}
}

.question-title-heading {
font-size: var(--typography-heading-secondary);
font-weight: 700;
color: var(--neutral-charcoal-dark);
margin-bottom: calc(var(--spacing-unit-base) * 1.5);
text-align: center;
}

.options-list-container {
list-style: none;
margin-bottom: calc(var(--spacing-unit-base) * 2);
}

.option-item-wrapper {
margin-bottom: var(--spacing-unit-base);
}

.option-label-interactive {
display: flex;
align-items: center;
padding: calc(var(--spacing-unit-base) * .8);
background: var(--neutral-cloud-gray);
border: 2px solid transparent;
border-radius: var(--border-radius-standard);
cursor: pointer;
transition: var(--transition-smooth-standard);
font-weight: 500;
font-size: var(--typography-body-standard);
}

.option-label-interactive:hover {
background: rgba(37, 99, 235, 0.05);
border-color: var(--accent-sky-bright);
transform: translateY(-1px);
box-shadow: var(--shadow-elevation-subtle);
}

.radio-input-hidden {
display: none;
}

.radio-input-hidden:checked + .option-label-interactive {
background: rgba(37, 99, 235, 0.1);
border-color: var(--primary-azure-blue);
box-shadow: var(--shadow-elevation-subtle);
}

.radio-visual-indicator {
width: 20px;
height: 20px;
border: 2px solid var(--neutral-slate-medium);
border-radius: 50%;
margin-right: calc(var(--spacing-unit-base) * 0.75);
position: relative;
transition: var(--transition-smooth-standard);
}

.radio-input-hidden:checked + .option-label-interactive .radio-visual-indicator {
border-color: var(--primary-azure-blue);
}

.radio-input-hidden:checked + .option-label-interactive .radio-visual-indicator::after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 10px;
height: 10px;
background: var(--primary-azure-blue);
border-radius: 50%;
animation: radioCheckAnimation 0.2s ease-out;
}

@keyframes radioCheckAnimation {
from {
    transform: translate(-50%, -50%) scale(0);
}
to {
    transform: translate(-50%, -50%) scale(1);
}
}

.completion-section-container {
display: none;
text-align: center;
animation: slideInFromBottom 0.5s ease-out;
}

.completion-section-container.active-state-visible {
display: block;
}

.completion-title-heading {
font-size: var(--typography-heading-secondary);
font-weight: 700;
color: var(--success-emerald-tone);
margin-bottom: calc(var(--spacing-unit-base) );
line-height: 1.2;
}

.completion-description-text {
font-size: var(--typography-body-large);
color: var(--neutral-charcoal-dark);
margin-bottom: calc(var(--spacing-unit-base) * 2);
line-height: 1.6;
}

.action-button-primary {
background: var(--gradient-secondary-depth);
color: var(--neutral-pristine-white);
border: none;
padding: calc(var(--spacing-unit-base) * 1.25) calc(var(--spacing-unit-base) * 2.5);
border-radius: var(--border-radius-standard);
font-size: var(--typography-body-large);
font-weight: 600;
cursor: pointer;
transition: var(--transition-smooth-standard);
box-shadow: var(--shadow-elevation-subtle);
text-transform: uppercase;
letter-spacing: 0.5px;
width: 100%;
}

.action-button-primary:hover {
transform: translateY(-2px);
box-shadow: var(--shadow-elevation-medium);
background: var(--gradient-primary-spectrum);
}

.action-button-primary:active {
transform: translateY(0);
}

.disclaimer-section-footer {
margin-top: calc(var(--spacing-unit-base) * 3);
padding: calc(var(--spacing-unit-base) * 1.5);
background: rgba(255, 255, 255, 0.95);
border-radius: var(--border-radius-standard);
backdrop-filter: blur(10px);
}

.disclaimer-title-warning {
font-weight: 700;
color: #dc2626;
margin-bottom: var(--spacing-unit-base);
font-size: var(--typography-body-standard);
display: flex;
align-items: center;
}

.disclaimer-title-warning::before {
content: '⚠️';
margin-right: 0.5rem;
}

.disclaimer-content-list {
list-style: none;
font-size: 0.875rem;
color: var(--neutral-charcoal-dark);
line-height: 1.5;
}

.disclaimer-item-bullet {
margin-bottom: 0.5rem;
position: relative;
padding-left: 1rem;
}

.disclaimer-item-bullet::before {
content: '•';
position: absolute;
left: 0;
color: var(--primary-azure-blue);
font-weight: bold;
}

.legal-links-container {
margin-top: calc(var(--spacing-unit-base) * 1.5);
text-align: center;
border-top: 1px solid rgba(100, 116, 139, 0.2);
padding-top: var(--spacing-unit-base);
}

.legal-link-element {
color: #666;
text-decoration: none;
font-size: 0.875rem;
margin: 0 var(--spacing-unit-base);
transition: var(--transition-smooth-standard);
}

.legal-link-element:hover {
color: var(--secondary-navy-depth);
text-decoration: underline;
}

@media (max-width: 480px) {
.content-wrapper-primary {
    padding: var(--spacing-unit-base);
}

.headline-primary-text {
    font-size:1.9rem;
    line-height: 1.1;
}

.subtitle-secondary-text {
    font-size: var(--typography-body-standard);
    padding: 0 10%;
}

.profile-image-wrapper-animated {
    width: 150px;
    height: 150px;
}

.form-container-interactive {
    padding: calc(var(--spacing-unit-base) * 1.5);
}

.question-title-heading {
    font-size: 1.125rem;
    text-align: center;
}

.legal-link-element {
    display: inline-block;
    margin: 0.25rem;
}

}

@media (min-width: 768px) {
.content-wrapper-primary {
    max-width: 600px;
    padding: calc(var(--spacing-unit-base) * 2);
    padding-top: calc(var(--spacing-unit-base) * 1);
    justify-content: center;
    min-height: 100vh;
}

.hero-section-container {
    margin-bottom: calc(var(--spacing-unit-base));
}

.profile-image-wrapper-animated {
    width: 180px;
    height: 180px;
    margin-bottom: calc(var(--spacing-unit-base) * 1.5);
}

.headline-primary-text {
    font-size: 2.25rem;
    margin-bottom: calc(var(--spacing-unit-base) * 0.75);
}

.subtitle-secondary-text {
    font-size: var(--typography-body-standard);
    margin-bottom: .5rem;
}

.form-container-interactive {
    padding: calc(var(--spacing-unit-base) * 1.75);
    margin-bottom: calc(var(--spacing-unit-base) * 1.5);
}

.progress-indicator-wrapper {
    margin-bottom: calc(var(--spacing-unit-base) * 1.5);
}

.question-title-heading {
    font-size: 1.5rem;
    margin-bottom: calc(var(--spacing-unit-base) * 1.25);
}

.option-label-interactive {
    padding: calc(var(--spacing-unit-base) * 1);
    font-size: 0.95rem;
}

.options-list-container {
    margin-bottom: calc(var(--spacing-unit-base) * 1.5);
}

.option-item-wrapper {
    margin-bottom: calc(var(--spacing-unit-base) * 0.75);
}

.disclaimer-section-footer {
    margin-top: calc(var(--spacing-unit-base) * 2);
    padding: calc(var(--spacing-unit-base) * 1.25);
}

.disclaimer-content-list {
    font-size: 0.8rem;
    line-height: 1.4;
}

.disclaimer-item-bullet {
    margin-bottom: 0.4rem;
}

.completion-title-heading {
    font-size: 1.5rem;
    margin-bottom: calc(var(--spacing-unit-base) * 1.25);
}

.completion-description-text {
    font-size: var(--typography-body-standard);
    margin-bottom: calc(var(--spacing-unit-base) * 1.5);
}

.action-button-primary {
    padding: calc(var(--spacing-unit-base) * 1) calc(var(--spacing-unit-base) * 2);
    font-size: var(--typography-body-standard);
}
}
.modal-backdrop {
    backdrop-filter: blur(4px);
}

.countdown-circle {
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
}

.countdown-progress {
    stroke-dasharray: 283;
    stroke-dashoffset: 283;
    animation: countdown 5s linear forwards;
}

@keyframes countdown {
    to {
        stroke-dashoffset: 0;
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.pulse {
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .dark-mode-bg {
        background-color: #1f2937;
        color: #f9fafb;
    }

    .dark-mode-modal {
        background-color: #374151;
        border-color: #4b5563;
    }
}

.btn {
    overflow: hidden; /* 让光效不溢出按钮 */
    position: relative;
}
.btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
            120deg,
            rgba(255, 255, 255, 0.3) 0%,
            rgba(255, 255, 255, 0.6) 50%,
            rgba(255, 255, 255, 0.3) 100%
    );
    transform: skewX(-25deg);
    transition: left 0.6s ease;
}

.btn:hover::after {
    left: 125%;
}